Considerations: Students will need base ten frames and 2 differently colored counters. Math vocabulary and a base ten frame are provided in the student journal.
Break apart 3
9+3= 9+3= 9+3=
9+1+2 10 + 2 12
Make 10 Equation: number sentence that uses an equal sign to show that two groups are equal 9 + 3 = 12 Expression: a number phrase that shows the value of something (has no equal sign) 9+3
Steps: 1. Use the base ten frames to break apart a number and make 10. 2. Record the expression that shows how to break apart a number to make 10. 3. Record the expression that shows 10. 4. Record the sum.
Application of MPs: MP1:
What strategies were used to solve the problem?
MP5: What tool did you use to help solve the problem? MP7: Is there another way to see the problem?
/ *MP1: Make sense of the problem and persevere in solving it! *MP8: Find a strategy to help solve the problem. Directions: Use base ten frames to break apart a number to make ten and find the sum.
1.
6+7=
State the objective: Today, I will use base ten frames to find a sum.
Identify the first addend and place the counters in the first base ten frame.
Identify the second addend and place the counters in the second base ten frame.
Model breaking apart the second addend.
Emphasize moving one part of the second addend to the first base ten frame, thereby making the first addend a 10.
Explain that since the first base ten frame is filled, it is ten. Therefore, 10 from the first base ten frame plus the 3 from the second base ten frame equals thirteen.
Link that information back to the original equation to show how the base ten frame was used to find the sum of 13.
Directions: Use base ten frames to break apart a number to make 10 and find a sum.
8+5=
1.
8+5= 8+5= 8+5=
6+9=
2.
6+9= 6+9= 6+9=
*MP3: Do you agree/disagree with what
said?
*MP6: How do you know your answers are correct/reasonable?
Recap today’s lesson with one or more of the following MP questions: MP1: What strategies were used to solve the problem? MP5: What tool did you use to help solve the problem? MP7: Was there another way to see the problem?