K – CC – RT5

Students were given different collections to count. Thom’s collection was in a small box. Jaya’s collection was stored in a large bag. Thom said his collection had less than Jaya’s. Jaya disagreed. Without counting either collection, explain why both students could be...

K – CC – RT6

You are working with the numbers 1 to 5. To demonstrate your understanding of counting, you want to make a number book that contains the appropriate amount of items for each number. Make this book and share your...

K – CC – RT7

You are working with the numbers 6 to 10. To demonstrate your understanding of counting, you want to make a number book that contains the appropriate amount of items for each number. Make this book and share your...

K – CC – RT1

Tanya said that the way she arranged her books changed the amount she had in her collection. What advice about counting would you give to Tanya?

K – CO – RT5

Your physical education teacher is teaching students how to properly throw a ball. The teacher provides students with different-sized balls that all weigh differently. Explain the weight difference in the balls.

Subscribe To Our Newsletter

Join our mailing list to receive the latest news and updates from Dr. David Costello.

You have successfully subscribed!