From Research to Recess: The Science Behind Great Teaching
Mastering Subitizing and Number Sense in Early Math Education In this episode, we dig into the concept of subitizing – the quick recognition of small quantities – and its big role in developing number sense from pre-K through elementary grades. We explore practical classroom strategies, the importance of games and visual tools, and how to build flexible math thinking that lasts beyond the early years. Key topics: * The definition and types of subitizing: perceptual and conceptual * How subitizing supports number sense and elementary math growth * Simple, effective tools for teaching subitizing (dot cards, dominoes, tally marks) * Bringing in games like Penny Drop, dominoes, and dice to strengthen recognition skills * Using quick assessment routines to gauge and develop students' subitizing abilities * Why part-part-whole understanding matters in addition * Weaving subitizing practice into classroom routines * Tips for organizing and using visual and tactile math tools at low cost Timestamps: 00:00 - Introduction to subitizing and its importance in math readiness 02:12 - Explaining perceptual and conceptual subitizing 03:51 - How to assess and promote rapid recognition of dots 06:19 - Using games and everyday objects (dominoes, dice) for subitizing practice 08:47 - The approximate number system (ANS) and its connection 09:34 - Practical tips for creating DIY subitizing tools (dot plates, tally cards) 11:30 - Weaving subitizing into daily math routines 14:06 - Ways to quickly assess student understanding during lessons 15:39 - Supporting slow or shy responders with intentional wait time 16:38 - Creative ideas for organizing visual math tools at low cost 17:07 - How to extend these strategies beyond early childhood Resources & Links: * Jack Hartmann Subitizing Video on YouTube [https://youtu.be/cI37YqVVQc0?si=Dgi-rqr6s5vN1RzJ] * Penny Drop Game on Amazon [https://amzn.to/4uQJofu] * 10 Frame Printable Templates * Domino Sets for Math Games [https://amzn.to/3Sg8Y05] Source:Math for Math Learning Trajectories & Subitizing: A Conversation with Dr. Douglas Clements [https://madeformath.com/learning-trajectories/] WHERE YOU CAN FIND US: Hilary Statum: https://pencilstopigtails.com/ [https://pencilstopigtails.com/] Deedee Wills: https://mrswillskindergarten.com/ [https://mrswillskindergarten.com/]
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