**Check for Understanding **Complete the

**Do you understand?**question on page 12.

enVisionMATH 2

## Check for Understanding

Have your student answer the **Do you understand? ** question on page 12.

**Tip: **Have your student draw a picture of a simple subtraction story. Check the picture, then ask him to write the sentence that represents the story.

Optional Differentiated Activities

You may choose from the following selection of activities to provide your student with additional practice or extension. **Have your student complete the following activities.**

__Practice__

- Practice 1–3 in the enVisionMATH 2
*Interactive Homework Workbook.* - Daily Spiral Review 1–3, which can be found in the Unit Resource Packet by clicking on the backpack icon.

**Share a household situation to model a subtraction sentence to find the difference.**

__Reteaching__**Missing Numbers (10 min)**

__Intervention__

Materials: part-part-whole mat, 12 connecting cubes, 1 sheet of paper

- Display a train with 12 connecting cubes to your student.
- Have your student close his eyes. Break the train into 2 trains of 8 and 4. Place each train on a part-part-whole mat. Hide the 4 cube train with a sheet of paper.
- Have your student open his eyes. Ask him to begin the subtraction sentence that represents the cube story. [
*12 – 8 =*] Ask how many cubes are missing. [*4*] Reveal the hidden cubes if they have difficulty deciding how many cubes are missing. - Repeat with a different sentence.

** On-Level **Helping Hands (10 min)

Materials: number tiles (0 to 9), a paper bag, Center Activity 1–3*

On each turn, a player picks a tile to show how many seeds will be taken from a seed packet that contains six seeds. That player uses fingers to show how many seeds will be left in that packet. That player's partner says a subtraction sentence that includes the number of seeds taken out of the packet and the number of seeds remaining in the packet.

**Helping Hands (10 min)**

__Advanced__

Materials: number tiles (0 to 9), a paper bag, Center Activity 1–3**

On each turn, a player picks a tile to show how many seeds will be taken from a seed packet containing 12 seeds. That player uses fingers to show how many seeds will be left in that packet. That player's partner says a subtraction sentence that includes the number of seeds taken out of the packet and the number of seeds remaining in the packet.

Talk about how this activity is like removing eggs from a carton of 12 eggs.

__With 8 cubes in a bag, reach in and take 0 cubes out.__

**Extension**

**How many cubes are still in the bag?**[

*8*]

**What number sentence shows this?**[

*8 – 0 = 8*]