Counting On
Title: Counting On Number Line Hop
Choose a START card.
Write the number on the card at the left end of the number line.
Choose a HOP card to see how far to jump.
Show your hops on the number line.
Mark the ending point on your number line.
Tell students that each of them will have their own recording sheet. After they record the hops and ending number, they will compare their results and how they made their hops.
As students play, notice if they are discussing their methods. Look for students who use each of the methods described in the Summary.
Guiding Questions:
Could you chunk this a different way?
Could you group the tens and add them at once?
What number could you add to get to the next ten?
→ Key Math to Observe
How do students chunk the addend?
Do they first hop by tens, then by ones? Do they count on or do they break the ones into friendly numbers?
Or do they break up the addend to hop to a nearby ten and add tens from there? Do they go one ten at a time? Or in groups?