Unit Planning Sheet for Subtraction

Lesson Before Hands On! After Questions Activating Prior Knowledge Task Congress Diagnostic We have been working on addition There are Choose several students to How did you solve the problem? Give the students and bringing numbers together. 10 cookies showcase their thinking. Have What strategy did you use to solve the the question Today I want you to take what you in a jar. them show how they solved the problem? LG: Determine what know and apply it to subtraction Avery eats problem. Is there more than one answer? students know about which means to get smaller some of the How do you know? subtraction cookies. How many cookies could be left in the cookie jar?

Sub Task #1 Use the ten frame to write number There are 8 Congress: Choose several How did you solve the problem? LG: teach that the sentences for subtraction. crayons are students to showcase their What strategy did you use to solve the larger number goes in a box. thinking. Have them show how problems? first when There are 5 they solved the problem. How was using the ten frame helpful? subtracting red. How Could you use another strategy to many are not solve the problem? red.

There are 7 crayons are in a box. There are 4 red. How many are not red.

Sub Task #2 There are 10 crayons in the basket. Fred There are 10 Congress: Choose several How did you solve the problem? LG: solve problems takes 3 crayons. How many are left? crayons in the students to showcase their What strategy did you use to solve the using subtraction basket. Fred thinking. Have them show how problems? takes 8 using the ten frame crayons. How they solved the problem. How was using the ten frame helpful? mat many are left? Could you use another strategy to solve the problem? There are 10 Is there more than one answer? crayons in the basket. Fred takes 1 crayons. How many are left?

Sub Task # 3 There are 7 apples in a fruit bowl. Sally There are 8 Congress: Choose several How did you solve the problem? LG: explicitly teach eats some of the apples. How many cookies on a students to showcase their What strategy did you use to solve the what the word some apples could be left? plate. Some thinking. Have them show how problems? What does the word some mean? are means in the How can you answer? chocolate they solved the problem. How was using the manipulative question Is there more than one answer? Why? chip and the helpful? How to use a other are Could you use another strategy to manipulative to solve oatmeal. solve the problem? the problem How many Is there more than one answer? are How do you know? chocolate chip and how What are all the combinations? many are oatmeal? How do you know? Sub Task #4 There are 6 eggs in a nest. 4 eggs There are 9 Congress: Choose several How did you solve the problem? LG: use a number hatch. How many eggs have not chocolate students to showcase their What was the strategy you used to line to solve the hatched? Show the students which bars in the thinking. Have them show how solve the problem? problem number to start on and count treat bowl. they solved the problem. How was using the number line the backwards. The number you land 6 of the helpful? on is the answer chocolate Is there more than one answer? bar are Kit How do you know? Kat. How What words helped you to know how many are to solve the problem? not Kit Kat? How do you know? Sub Task #5 Ask: How can a number line help There are Congress: Choose several How did you solve the problem? LG: use a number you to solve a subtraction 10 birds in students to showcase their What was the strategy you used to line to solve the question? a tree. 6 of thinking. Have them show how solve the problem? problem What number do you start on when the birds fly they solved the problem. How was using the number line using a number line to subtract? away, how helpful? Do you jump to the right or left on many of the Is there more than one answer? the number line when subtracting? birds are How do you know? Why? left in the What words helped you to know how tree? to solve the problem? Sub Task #6 Give them a questions and see what There are 9 Congress: Choose several What strategies did you choose to Formative strategies they use candies in students to showcase their answer the question? Assessment Are they putting the larger number first box. 4 of thinking. Have them show how Why did you choose those strategies? Can they use a subtraction and the candies they solved the problem. Was there more than one answer to understand what the number sentence are red. the question? means How many are not red? Solve the problem using 2 strategies. Sub Task #7 Mrs. M had 5 balls. Some are Mom Congress: Choose several Is there more than one answer to this LG: what does some soccer balls. How many are not ordered a students to showcase their question? mean? soccer balls? pizza with 8 thinking. Have them show how How do you know? LG: use an Explicitly teach the use of an slices. My they solved the problem. How many answers could there be? organized list to organized list to show 5 – 1 etc. dad ate How do you know you have all the solve the problem some of the answers? pizza. How How did using the organized list help many slices you? could be left? Show all the combinatio ns.

Sub Task #8 There are 6 cup cakes on a plate. There are 9 Congress: Choose several Is there more than one answer to this LG: what does some Mr. Kumino ate some of the cup bananas in students to showcase their question? mean? cakes. How many could be left? a bowl. thinking. Have them show how How do you know? LG: use an Sarah eats they solved the problem. How many answers could there be? How do you know you have all the organized list to some of the answers? solve the problem bananas. How did using the organized list help you? How many Do you see a pattern in the numbers? bananas could Sarah eat? Sub Task #9 There are 8 candy canes on the There are Congress: Choose several What strategy did you use to answer LG: find a pattern to Christmas tree. Mr. V eats some of 10 candy students to showcase their the question? solve the problem the candy canes. How many candy canes on thinking. Have them show how Was there more than one answer to canes could he have eaten? the they solved the problem. this question? Christmas How do you know? Students tell the combinations tree. Mr. V How many answers could there be? Ask: them to organize the numbers eats some How do you know you have all the if they do not give the numbers in of the answers? an organized list candy How did using the organized list help canes. you? How would you organize the How many What do you notice about the numbers? candy numbers? Do you notice anything about the canes could Do you see a pattern in the numbers? numbers he have What kind of pattern do you see? eaten? Why is one side growing and the other side shrinking? Sub Task #10 There are What strategy did you use to answer LG: find a pattern to 10 cookies the question? solve the problem in a jar. Was there more than one answer to Avery eats this question? some of the How do you know? cookies. How many answers could there be? How many How do you know you have all the cookies answers? could be How did using the organized list help left in the you? cookie jar? What do you notice about the numbers? Do you see a pattern in the numbers? What kind of pattern do you see? Why is one side growing and the other side shrinking?