- Demonstrate an understanding of numbers, using concrete materials to explore and investigate counting, quantity, and number relationships (#15).

- Students and teacher will be sitting on the floor with a working mat in front of them.

- Working Mat for each student
- Cuisenaire rods

- Lay out the Cuisenaire Rods and explain that each rod can be assigned a number.
- Hold up one of the rods and ask the kids to grab the same colour of rod you have.
- Then say,
*If I gave this rod the number 2, what number do you think this rod would be?*(hold up immediate next rod, 3). Wait to hear their answers and reasoning or strategies behind their response. - Show the rod immediately before the 2
^{nd}rod and ask children what they think that rod may represent. - Once again, wait to hear children’s answers and reasoning behind their response.
- Ask students what they think will happen if a #1 rod is put on top of another #1 rod.
- Allow children to try it. Students will discover that if you put the #1 rod on top of another #1 rod, it is the same height as the #2 rod.
- After establishing the #1, #2, #3 rods and the numbers they represent, skip the #4 rod and instead show the #5 rod.
- Ask students what number they think it will represent and how they figured it out.
- Fill in the rest of the numbers and ask students what they notice about all those rods lined up.

- Are they able to express their reasoning?
- Are children able to grasp the pattern and guess at the next and previous term?

**Make different combinations of the same number**

- Demonstrate that if you put #5 and #5 together (one on top of another) it makes 10.
- Then ask students if they can figure out how to make 10 by putting 2 rods together.
- Students can work in pairs to make as many different combinations as possible.
- Bring students back to the whole group and ask them to share one of the combinations they made.
- Students will be able to see the combinations that make 10 because they will all be the same height.
- Students may further extend the activity by creating their own combinations.

**Roll a dice and make as many combinations of that number as you can**

- Students roll two dice and add the numbers together.
- Using the Cuisenaire rods, students show different ways to make that number.

Share on facebook

Share on twitter

Share on email