Blog Post

3 Easy science experiments to try at home

September 9, 2022

Having fun with STEM doesn’t need to be complicated.

Science, or the “catch-all” term we now use, STEM, is all about discovering how our world works, which means that science – and the chance to experiment with it – is all around us. So, helping your child delve into the world of STEM doesn’t mean you have to invest in any specific toys or kits. You can find what you need for fun and educational experiments lying around at home. Read on and try some for yourself.

 

Safety note: remember safety first! Always. Always wear gloves, aprons and goggles if any hazardous materials are being used, and always chat to your children about the possible dangers of trying things without an adult present.

 

1.   Make water walk


What you need:


  • 5 to 10 small, glasses or plastic cups
  • Food colouring in various colours
  • 5 to 10 paper towels
  • Water

 

How to do it:


  1. Place your cups in a row with a 2cm space between each and fill each cup ¾ up with water
  2. Place 5 drops of food colouring in each cup of water – each cup gets a different colour
  3. Fold each paper towel in half lengthwise, and then fold each in lengthwise again – you want a narrow piece of paper towel that will fit into the cups. Trim the lengths of the paper towel if needed
  4. Now place one half of a folded piece of paper towel in the first cup, and the second half in the second cup
  5. Repeat this with each cup, so that you have a trail of paper towel from one cup to the next
  6. Watch as the coloured water crawls up each paper towel, and continues to move into the next cup, colouring the water in it too.

 

The science explained:


The water moves up through the fibres and gaps in the paper towel in a process that’s called ‘Capillary Action’. This is essentially how water and nutrients travel from a plants roots through to its stems and leaves – the water travels up the capillary tubes (which are the gaps in the paper towels fibres) against gravity, because of the forces between the water and the fibres that are interacting with each other.

 

2. What’s on my teeth?


What you need:


  • 4 Eggs
  • 4 Glasses or plastic cups
  • Carbonated cooldrink, preferably dark in colour
  • Vinegar
  • Toothpaste
  • Marker and sticky notes

 

How to do it:


  1. Fill two glasses halfway with the fizzy cooldrink, and label one as Cooldrink 1 and the other as Cooldrink 2 using the sticky notes
  2. Fill the other two glasses halfway with the vinegar or lemon juice and label them Vinegar 1 and Vinegar 2 accordingly
  3. Rub toothpaste over two of the eggs – you want to be sure that they are covered all over with quite a thick layer
  4. Place one toothpaste-covered egg in the cup labelled Cooldrink 1 and place the other toothpaste-covered egg in the cup labelled Vinegar 1
  5. Next place the remaining two eggs, that are not covered with toothpaste, in the cup labelled Cooldrink 2 and Vinegar 2 respectively
  6. Leave the eggs in the cups in a safe place for anything from 12 hours to 1 week
  7. Remove the eggs from each cup, rinse them and pat them dry with a towel or kitchen towel (make sure you keep track of what cup each eggs came from so that you can compare the results)
  8. Ask your child if they notice any differences in the colours of the eggs, then get them to feel them and tell you if there are any differences.
  9. The egg that was covered in toothpaste and placed in the Cooldrink 1 cup should look much like it did at the beginning, while the egg with no toothpaste, placed in the Cooldrink 2 cup will be discoloured
  10. Similarly, the egg that was covered in toothpaste and placed in the Vinegar 1 cup will feel much like it did at the beginning, but the egg with no toothpaste placed in the Vinegar 2 cup will be soft to the touch.

 

The science explained:


By placing the eggs in different liquids, you are exploring the reactions of acids and bases when they come into contact with one another. Plus, this experiment is a great way to convince your child to brush their teeth! The eggshells represent the enamel on your child’s teeth. When they came into contact with the cooldrink, they were stained – much like our teeth can get stained by food and drink. The vinegar broke the eggshell down, which shows how our teeth can form cavities if not cared for. But, the eggs covered in toothpaste didn’t get stained or worn down, showing that brushing our teeth helps protect them and keep them strong.

 

3. What is amplification?


What you need:


  • An empty toilet roll inner
  • 2 paper cups
  • Scissors and a craft knife
  • Pencil

 

How to do it:


  1. Trace the shape of the bottom of your phone on the toilet roll
  2. Cut this out using the craft knife – this slot will form the base that holds your phone in this DIY amplifier
  3. Now trace the end of the toilet roll on the side of a paper cup and repeat for the second paper cup
  4. Cut these shapes out of the paper cups – these are going to be the ‘speakers’
  5. Attach a paper cup to each end of the toilet roll
  6. You can decorate your amplifier with washi tape, paint it, or even cover it in glitter
  7. Put your favourite song on and place the phone into the slot you’ve made for it, then listen to how it changes the sound.

 

The science explained:


This one is all about sound waves, showing you how sound travels through air, water or another medium to reach our ears, and how directing those waves in certain ways affects how we hear them. When you listen to music on your phone without the amplifier, the sound waves travel all around you in the air – they are spread out around the room. When you put the phone into the DIY amplifier, the sound waves are directed through the toilet roll tube and out of the paper cup speakers. Because the sound has been directed and focused, you hear it louder (and it’s not as tinny). 


Read more Crawford International blog articles here.

February 21, 2025
The Power of Warm Demanders in Education and Their Impact on Student Outcomes In today’s dynamic educational landscape, where the emphasis on both academic excellence and emotional intelligence is paramount, a nuanced teaching approach known as the warm demander has emerged as a catalyst for student success. This philosophy transcends the outdated dichotomy of strict discipline versus lenient encouragement; instead, it fosters a balanced environment where high expectations and relational warmth coexist, driving meaningful student engagement and achievement. Defining Warm Demanders in the Classroom A warm demander is an educator who blends unwavering support with consistently high expectations, creating an environment that challenges students while offering them the necessary emotional scaffolding to thrive. Rather than enforcing discipline through authority alone, warm demanders cultivate respect through fairness and relational depth; they demand excellence but accompany this with genuine care and understanding. As Bondy and Ross (2008) highlight, this approach nurtures responsibility, resilience, and autonomy among learners. In practical terms, a warm demander might push a student to persevere with a difficult problem while simultaneously offering encouragement, acknowledging the effort involved, and providing the resources necessary for success. This dual focus on expectation and empathy shapes students into independent thinkers who are capable of managing both academic challenges and personal growth. The Key Characteristics of Warm Demanders The effectiveness of warm demanders lies in their ability to integrate seemingly opposing qualities into a cohesive teaching strategy. The following characteristics define their approach: Uncompromising High Expectations : Warm demanders believe that every student is capable of excellence; they set ambitious academic and behavioural standards without compromising on quality or effort. Relational Warmth and Trust : They build meaningful relationships with their students, fostering mutual respect and understanding. This relational foundation allows students to feel safe while navigating academic challenges. Cultural Responsiveness : Recognising the diverse cultural backgrounds of their students, warm demanders adapt their teaching practices to be inclusive and culturally affirming (Gay, 2010). Constructive Discipline : Rather than resorting to punitive measures, these educators use discipline as a form of positive reinforcement; boundaries are established, but every correction is accompanied by guidance and support. How Warm Demanders Positively Influence Student Outcomes Students taught by warm demanders benefit from an environment where both accountability and compassion coexist. Research suggests that high expectations paired with strong teacher-student relationships result in improved academic outcomes and increased motivation (Irvine & Fraser, 1998). When students perceive that their teachers genuinely believe in their potential, their confidence grows; this sense of belief often translates into greater perseverance and academic success. Furthermore, warm demanders foster critical life skills beyond academics. Traits such as resilience, self-discipline, and adaptability are cultivated as students learn to face challenges head-on while knowing that support is readily available. A strong sense of belonging also emerges from these relationships, which research has linked to higher retention rates and overall student well-being (Osterman, 2000). Challenges and Best Practices for Teachers Adopting This Approach While the warm demander model offers numerous benefits, adopting this teaching style requires a delicate balance that can be challenging to maintain. Educators often face several obstacles: Balancing Authority with Compassion : Striking the right balance between maintaining high standards and nurturing a supportive environment requires ongoing self-awareness and adaptability. Cultural Misinterpretations : Without cultural competence, educators risk misunderstanding student behaviour or inadvertently imposing biased expectations. This underscores the need for culturally responsive teaching strategies. To overcome these challenges, teachers can embrace several best practices: Prioritising Relationship Building : Establishing genuine connections with students lays the foundation for trust and mutual respect. Consistency and Fairness : Applying expectations uniformly while acknowledging individual needs ensures students perceive their teacher as both fair and supportive. Reflective Practice : Regularly assessing one’s teaching methods and adapting to students’ evolving needs is essential for long-term success. A Transformative Shift in Modern Education Warm demanders represent more than just an educational philosophy; they embody a transformative approach that empowers students to embrace academic rigour with confidence and resilience. By nurturing relationships and setting high expectations, educators can create a learning environment that challenges students intellectually while supporting them emotionally. In a world where education must prepare students not only for academic achievement but also for real-world challenges, the warm demander approach stands as a powerful tool for fostering capable, compassionate, and resilient learners.
February 14, 2025
The Role of Digital Literacy in Education The rapid advancement of artificial intelligence (AI) is reshaping industries, redefining communication, and influencing how people learn. AI-powered technologies such as machine learning, natural language processing, and automation are increasingly embedded in everyday life, from digital assistants to advanced data analytics in education (OECD, 2023). As the world embraces this digital shift, the ability to navigate technology effectively has become essential. Digital literacy is no longer an additional skill, it is a fundamental requirement for success in modern education and beyond. According to the World Economic Forum (2022), 65% of children entering primary school today will eventually work in jobs that do not yet exist, highlighting the necessity of equipping students with adaptable digital skills. At Crawford International, Digital Literacy is introduced at the Pre-Primary level, where students engage with technology in structured ways. By the Preparatory phase, this foundation is further enhanced through educational technology (EdTech), providing students with the tools to develop critical thinking, creativity, and responsible digital habits from Grade 4. What Is Digital Literacy? Digital literacy refers to an individual’s ability to access, evaluate, create, and communicate information using digital technology. It involves more than just the ability to operate a device, it requires critical thinking, ethical engagement, and adaptability. UNESCO (2023) defines digital literacy as “the ability to access, manage, understand, integrate, communicate, evaluate, and create information safely and appropriately through digital technologies.” In the 21st century, digital literacy extends beyond basic technical skills. It includes competencies in cybersecurity, online collaboration, media literacy, and digital ethics, all of which are essential for students to navigate an increasingly digital society. The Core Components of Digital Literacy To ensure students are equipped for the digital age, digital literacy can be broken down into several key components: Technical Proficiency Students must develop the ability to use digital devices, software, and applications confidently. This includes everything from word processing to using cloud-based learning platforms and online research tools (European Commission, 2023). At Crawford, students interact with digital platforms such as Toddle, where teachers and parents engage in real-time communication, reinforcing a collaborative learning environment. Information and Media Literacy With the rise of misinformation and fake news, students need to critically assess digital content and distinguish credible sources from unreliable ones. Research from the University of Pretoria (2022) found that 73% of South African students encounter misleading information online. Teaching students how to verify sources, fact-check data, and interpret digital content is crucial. Cybersecurity Awareness As digital threats continue to rise, students must understand online safety, data privacy, and responsible digital behaviour. A report by Kaspersky (2023) indicates that 45% of South African parents are concerned about their children’s online safety. Schools play a key role in educating students on creating strong passwords, recognising cyber threats, and practising responsible digital habits. Digital Communication and Collaboration The ability to communicate effectively through digital platforms is essential in both academic and professional settings. This includes email etiquette, virtual teamwork, and online discussions. Platforms like Microsoft Teams, Google Classroom, and Toddle help students develop these skills through real-time communication with teachers and peers. Creativity and Innovation Beyond consuming digital content, students should be encouraged to create and innovate using digital tools. Whether through coding, video editing, graphic design, or app development, digital literacy fosters problem-solving and creative thinking, which are vital for future careers (World Economic Forum, 2022). How Digital Literacy Develops Critical Thinking and Collaboration Digital literacy does not only equip students with technical abilities, it enhances critical thinking, collaboration, and adaptability. By engaging with digital tools, students learn to analyse problems, evaluate solutions, and communicate effectively with others. Research from the South African Institute for Distance Education (2023) shows that students who engage with digital learning platforms demonstrate higher levels of problem-solving and independent thinking compared to those who rely solely on traditional learning methods. Collaboration is another crucial aspect of digital literacy. Online platforms enable students to work together on projects, exchange ideas, and build global connections. For example, at Crawford International, students in the Preparatory phase engage in collaborative digital projects, developing skills in teamwork and digital communication that will benefit them in the long term. Digital Literacy and Career Readiness As industries become more technology-driven, digital competence is now a key requirement for career success. The International Labour Organisation (2023) estimates that by 2030, over 80% of jobs will require some level of digital proficiency. This makes digital literacy an essential skill for students preparing to enter the workforce. Beyond technical skills, adaptability and lifelong learning are crucial. Digital advancements continue to evolve, and students must be prepared to update their skills and stay informed about emerging technologies. Schools that integrate digital literacy into their curriculum equip students with the mindset needed for continuous learning and professional growth. Addressing the Digital Divide and Online Safety Concerns Despite the importance of digital literacy, access to technology remains uneven. In South Africa, research from Statistics South Africa (2023) indicates that only 37% of households have access to a computer at home, creating a significant digital divide. To bridge this gap, schools must implement strategies that ensure equal access to digital resources for all students. Additionally, screen time management and online safety are growing concerns for teachers and parents. The South African Paediatric Association (2023) suggests that excessive screen time can impact cognitive development and sleep patterns in young children. Schools must educate students on responsible technology use, balancing screen time with offline activities, and ensuring online interactions remain safe and appropriate. Digital literacy is no longer a supplementary skill, it is a fundamental competency that prepares students for the future. As AI and technology continue to redefine education and the workplace, students must be equipped with the skills to navigate, evaluate, and engage with digital tools responsibly.  At Crawford International, digital literacy is embedded into early learning through Pre-Primary and Preparatory Phase programmes that integrate EdTech to develop critical thinking, communication, and problem-solving skills. With digital literacy becoming a defining factor in academic success and career readiness, schools play a pivotal role in preparing students for a digitally-driven world.
February 7, 2025
A Guide for First-Time School Parents With the first term of the year now well underway, families with school-going children are settling into routines. For many, this includes preparing little ones for their very first day of school, a milestone that brings excitement and perhaps a touch of nervousness. Starting school is a significant chapter not only for children but also for parents who are navigating this journey for the first time. From choosing the right school to managing separation anxiety and building new routines, the experience can feel both rewarding and daunting. This guide is designed to provide practical points and reassurance, helping first-time school parents make the most of this transformative time. Preparing for the First Day of School Preparation is key to ensuring a smooth start to the school year. Begin by establishing a routine that aligns with the school schedule a few weeks before the term begins. This includes waking up at the same time, practising getting ready, and having breakfast together. Shopping for school stationery is another important task. Involve your child in picking out their school bag, stationery, and uniform. This can help create a sense of excitement and ownership over the process. Familiarise your child with the school environment before their first day. Many schools offer orientation sessions or open days. If this is an option, make sure to attend. Walking around the campus and meeting some of the staff can help reduce first-day nerves (Department of Basic Education, 2023). Choosing the Right School Selecting a school is one of the most crucial decisions parents make. Factors to consider include the school’s curriculum, location, fees, and extracurricular offerings. Visit the schools you’re considering to observe the environment and meet the teaching staff. Talk to other parents in your community for recommendations. Their experiences can provide valuable insights into a school’s strengths and areas for improvement. Remember to involve your child in the decision-making process, especially if they are old enough to articulate their preferences. Understanding School Communication Channels Effective communication is essential for staying informed about your child’s progress and school activities. Familiarise yourself with the school’s communication tools, whether they use newsletters, emails, or dedicated apps. For example, Crawford International uses the Toddle platform to facilitate seamless communication between parents and teachers. Parents can instantly share concerns, track academic progress, or even discuss issues requiring immediate attention. Open communication ensures you remain an active participant in your child’s education. Helping Your Child Adjust The transition to school can be challenging, especially for younger children. Encourage open conversations about their feelings and reassure them that it’s normal to feel a mix of emotions. Reading books about starting school or sharing your own positive school memories can help your child develop a more optimistic outlook. Gradually increase their independence at home by assigning small tasks, such as packing their school bag or setting the table. If possible, arrange playdates with classmates before school starts. Building friendships early on can ease the transition and give your child familiar faces to look forward to seeing. Balancing Schoolwork and After-School Activities While academics are important, extracurricular programmes offer children a chance to explore their interests and develop new skills. Whether it’s sports, music, or coding classes, these activities provide a well-rounded experience. However, it’s crucial to strike a balance. Overscheduling can lead to fatigue and stress. Aim for a manageable routine that allows your child to enjoy after-school activities without compromising on homework or relaxation time. Create a weekly calendar to plan your child’s schedule. This not only helps with time management but also ensures you can monitor their workload and adjust when necessary. Building a Homework Routine Homework can become a source of stress if not managed well. Establish a designated homework area in your home that is quiet and free from distractions. Set a consistent time for homework each day, and ensure all necessary supplies are easily accessible. While it’s important to supervise, avoid completing tasks for your child. Instead, offer guidance and encourage problem-solving. Praise their efforts rather than just the outcomes to build confidence and resilience. Getting Involved in the School Community Active participation in the school community strengthens your connection with the institution and provides opportunities to support your child’s education. Attend parent-teacher meetings, volunteer for school events, or join the parent association if one exists. Engaging with other parents can also create a support network where you can share advice and experiences. Schools often host social events or workshops, which are great for meeting other families and feeling more integrated into the community. The journey of sending your child to school for the first time is filled with opportunities for growth for both you and your child. With thoughtful preparation and open communication, the transition can be a positive and enriching experience. Remember, the first step is often the hardest, but it also sets the foundation for a lifelong love of learning.
January 31, 2025
A Guide To Parent Teacher Meetings The new academic term has just started a few weeks ago, and families with school-going children are settling into their routines. However, as students transition back to the classroom, another important aspect of the school calendar looms, parent teacher meetings. While these meetings are integral to nurturing strong collaboration between families and schools, they can also bring a mix of emotions, from curiosity to unease, for parents. In South Africa, where over 12 million students attend public and private schools (Department of Basic Education, 2023), the importance of such interactions cannot be overstated. These sessions offer invaluable insights into a child’s academic progress, social development, and overall well-being. What Are Parent Teacher Meetings? Parent teacher meetings are structured conversations between parents and their child’s teachers, aimed at discussing the student’s academic performance, behaviour, and overall development. These meetings create an opportunity for open communication, ensuring that both parties can collaborate effectively to support the student’s educational journey. They are not just a platform for addressing concerns but also for celebrating achievements and setting shared goals. What Do They Entail at Crawford? At Crawford International, parent teacher meetings are designed to be more than just routine check-ins. They reflect our commitment to fostering strong partnerships with families. During these sessions, parents meet with teachers to gain a holistic view of their student’s progress, not only academically but also socially and emotionally. Teachers share personalised feedback, highlight areas of growth, and discuss strategies to address challenges. These meetings are tailored to align with our ethos of developing well-rounded students, emphasising collaboration to ensure every child reaches their potential. How Often Are They? Parent teacher meetings at Crawford typically occur once per term, although additional sessions may be scheduled based on specific needs or requests. Regularity ensures that parents stay informed about their child’s journey throughout the academic year. These consistent touchpoints help to build trust and maintain a steady flow of communication between parents and teachers. How Best Should Parents Prepare for Them? Preparation is key to making the most of parent teacher meetings. Here are a few practical tips: Review Reports and Notes – before the meeting, review any recent academic reports, test results, or communication from the school. This provides a foundation for meaningful discussions. Prepare Questions – jot down specific questions or concerns you want to address. For example, ask about areas where your child excels or struggles and how you can support them at home. Engage with Your Child – have a conversation with your child about their experiences at school. Understanding their perspective can provide valuable context for the meeting. Be Open-Minded – approach the meeting with a collaborative mindset. Remember, the goal is to work together with the teachers to support your child’s growth. Take Notes – during the meeting, take notes on key points discussed, including recommendations from teachers. This ensures you can follow through on agreed actions. Parent teacher meetings are more than a requirement; they are an investment in a child’s future. By approaching these sessions with preparation and a collaborative spirit, parents can play an active role in shaping their child’s educational journey. As families across South Africa embrace this vital part of the school experience, let’s work together to make each interaction meaningful and impactful.
By Neo Moshoeu January 24, 2025
Help your kids navigate social media safely and responsibly. Discover tips to teach them smart habits, digital etiquette, and how to manage online interactions.
January 17, 2025
FOR IMMEDIATE RELEASE Crawford International Celebrates the Matric Class of 2024 Crawford International proudly announces the exceptional performance of its Matric Class of 2024. Across all campuses, students collectively achieved 1527 distinctions, with an impressive average of 2.81 distinctions per candidate, reinforcing the school’s commitment to academic excellence and holistic education.  Crawford Sandton emerged as the top-performing campus, achieving 504 distinctions with an average of 4.27 distinctions per candidate. This success reflects the dedication of students and teachers and the strength of Crawford’s academic programmes. Tracey Purkiss, Principal of Crawford Sandton College, praised the achievements of this year’s matriculants; "the Class of 2024 has demonstrated a true Crawfordian spirit in their approach to their final year. Their achievements reflect their hard work and commitment, and we are incredibly proud of their success. I look forward to the positive contributions they will make as global leaders."
January 10, 2025
Learn what the APS score is, why it matters for university admission, and how to calculate it step-by-step to plan your academic future effectively.
December 13, 2024
Explore the advantages of co-educational schools, from fostering collaboration and mutual respect to preparing students for real-world experiences and diverse environments.
A poster that says the importance of phonemic awareness in early childhood development
November 29, 2024
The Importance of Phonemic Awareness in Early Childhood Development Phonemic awareness is a critical skill in the early stages of a child's educational journey, playing a pivotal role in the development of reading abilities. It refers to the understanding that spoken words are composed of individual sounds, known as phonemes, which are the smallest units of sound in a language (Smith & Johnson, 2020). This foundational skill enables children to manipulate phonemes to form words, setting the groundwork for spelling and reading. The development of phonemic awareness is essential because it directly correlates with a child's ability to read and spell accurately (Brown, 2021). Studies have shown that children who develop strong phonemic awareness are more likely to become proficient readers and excel academically in subsequent years. It aids in decoding new words, a critical skill in reading fluency and comprehension. The most crucial period for developing phonemic awareness is during Early Childhood Development (ECD), particularly between the ages of three and five. This phase is significant as the plasticity of the young brain during these early years makes it ideally suited for absorbing new sounds and language patterns (White & Thompson, 2020). Effective phonemic awareness training should be incorporated into ECD programmes to maximise developmental benefits and lay a strong foundation for future reading skills. Incorporating activities such as rhyming, segmenting, and blending sounds should be part of daily learning experiences. These activities not only enhance phonemic skills but also engage children in enjoyable and meaningful learning experiences that promote a love for reading and learning. The development of phonemic awareness is a cornerstone of early childhood education that supports the broader academic and social success of students. By nurturing these skills at a young age, we equip our students with the tools necessary for lifelong learning and success.
A poster for preparing for your first day of school
November 22, 2024
Start your school year off right! Discover practical tips to prepare for your first day of school, from organizing supplies to managing nerves and setting goals.
Show More
Share by: