Yesterday we used ten frames to help us think about how many tens we were making. Let's do a count by 10s song to help get our brains ready for today's work!
We use tens to help us make numbers. Ten is our best friend and we can use it to make bigger quantities!
Your thinking job today is: How many tens are in a number and how do I show it with ten frames?
Today we are going to work at a bakery, filling orders of cookies. We have special trays at this bakery that hold 10 cookies, just like our ten frames hold 10 cubes.
Present problem: We have 30 cookies to put on trays. Each tray can hold 10 cookies. How many trays of 10 do we need?
These questions help students learn how to work through a problem, this aligns to CCSS Mathematical Practice standard, "Make sense of and persevere through problems".
Student Work Time:
As students work, I float and take note of the strategies students are using. Some of the possible strategies are (from lowest to highest):
I'll choose 2 student strategies to share with the class. We will create an anchor chart of how these 2 students solved the problem that other students can refer back to during their independent work time.
1. Draw an order card.
2. Cut out the ten frames needed to fill that order.
3. Write how many tens.
Group A: Intervention
For these students, I will have them build the number out of cubes each time on ten frames. This concrete exposure is necessary for them to understand the picture.
Group B: Right on Track
I'll push these students to represent the number with the picture, without needing to take out the cubes to represent it.
Group C: Extension
I'll give these students larger numbers to see if they can generalize their understanding of groups of tens.
See Cookie Cards and Recording Sheet.docx for independent practice.