Download Monday Math---Lesson 11-2: Subtracting Tens on a Hundred Chart

Math
March 17-21
10:30-11:05, Lunch and bathroom is from 11:05-11:35, then continue math
lesson until 12:30.
Monday Math---Lesson 11-2: Subtracting Tens on a Hundred Chart
Objective: Students will use a hundred chart to subtract multiples of 10 from two-digit
numbers.
Common Core Standards: 1.NBT.5, 1.NBT.6
1. Daily Common Core Review worksheet 11-2: work through under the document
camera to review: adding tens, finding patterns in numbers, ordering whole
numbers, and writing number sentences
2. Math envision video CD for lesson 11-2: Subtracting Tens on a Hundred Chart
3. Lesson 11-2 packet: Subtracting Tens on a Hundred Chart
4. Math workbook: Practice and Reteaching 11-2 workbook pages
5. Intervention activity: “My Favorite Number” teacher’s guide pg. 362B
6. Quick Check and Enrichment 10-6 pages—work through together under the
document camera
Critical Thinking questions during the lesson:
1. 84-__=74, 74-__=64, 64-__=54. What is similar in these subtraction sentences?
2. Pick and circle a number on the hundred chart that is greater than 40 and less than
100. Subtract 30 from your number. Write a subtraction sentence.
Tuesday Math—Lesson 11-3: Subtracting Tens from Two-Digit Numbers
Objective: Students will subtract a multiple of 10 from a two-digit number.
Common Core Standards: 1.NBT.5, 1.NBT.6
1. Daily Common Core Review worksheet 11-3: work through under the document
camera to review: subtracting tens, writing number sentences, and using patterns
to subtract
2. Math envision video CD for lesson 11-3: Subtracting Tens from Two-Digit
Numbers
3. Lesson 11-3 packet: Subtracting Tens from Two-Digit Numbers
4. Math workbook: Practice and Reteaching 11-3 workbook pages
5. Intervention activity: “How Many Crayons?” teacher’s guide pg. 366B
6. Quick Check and Enrichment 11-3 pages—work through together under the
document camera
Critical Thinking questions during the lesson:
1. Determine which number was subtracted if you start with 65 and now have 45.
2. What digit changes when you subtract tens? Which digit stays the same? Explain.
3. Pick a number greater than 65 and less than 90. Subtract 20, 30, or 40 from your
number and write a number sentence to match.
Wednesday Math—Lesson 11-4: Using Mental Math to Subtract
Objective: Students will subtract multiples of 10 from two-digit numbers using mental
math.
Common Core Standards: 1.NBT.5, 1.NBT.6
1. Daily Common Core Review worksheet 11-3: work through under the document
camera to review: adding two-digit numbers, comparing and ordering numbers,
and identifying numbers
2. Math envision video CD for lesson 11-4: Using Mental Math to Subtract
3. Lesson 11-4 packet: Using Mental Math to Subtract
4. Math workbook: Practice and Reteaching 11-4 workbook pages
5. Intervention activity: “Taking Tens” teacher’s guide pg. 370B
6. Quick Check and Enrichment 11-4 workbook pages—work through together
under the document camera
Critical Thinking Questions during the lesson:
1. Use mental math to find 78-20-30
2. Explain why only the tens digit changes when you subtract 20 from 76.
3. Write a subtraction story about 56-30. Solve your story.
4. Choose a number from 29, 73, 32, 81, 63, 54, 28 and subtract 20. Tell what
happens to the tens digit and the ones digit when you subtract.
Thursday Math—Lesson 11-5: Subtracting from a Two-Digit Number
Objective: Students will subtract one-digit numbers from two-digit numbers with and
without regrouping and record the difference in horizontal form.
Common Core Standard: 1.NBT.6
1. Daily Common Core Review worksheet 11-5: work through under the document
camera to review: showing equivalent forms and identifying 10 less
2. Math envision video CD for lesson 11-5: Subtracting from a Two-Digit Number
3. Lesson 11-5 packet: Subtracting from a Two-Digit Number
4. Math workbook: Practice and Reteaching 11-5 workbook pages
5. Intervention activity: “Regroup to Subtract?” teacher’s guide pg. 374B
6. Quick Check and Enrichment 11-5 workbook pgs.—work through together under
the document camera
Critical Thinking Questions during the lesson:
1. How would you use cubes to subtract 42-13?
2. Do you need to regroup when you subtract 32-5? How do you know?
3. Write a subtraction sentence that uses regrouping and solve.
Friday Math—Lesson 11-6: Problem Solving: Draw a Picture and Write a
Number Sentence
Objective: Students will draw a picture and write a number sentence to solve subtraction
story problems.
Common Core Standard: 1.NBT.6
1. Daily Common Core Review worksheet 11-6: work through under the document
camera to review: comparing and ordering numbers and subtracting tens
2. Math envision video CD for lesson 11-6: Problem Solving: Draw a Picture and
Write a Number Sentence
3. Lesson 11-6 packet: Problem Solving: Draw a Picture and Write a Number
Sentence
4. Math workbook: Practice and Reteaching 11-6 workbook pages
5. Intervention activity: “Use Models” teacher’s guide pg. 378B
6. Quick Check and Enrichment 11-6 workbook pages—work through under the
document camera together
Critical Thinking Questions during the lesson:
1. Tell a story problem for 90-50=40 or tell how you would solve the problem
2. How can a picture help you check that your number sentence is correct?
3. Draw a picture and write a number sentence to help solve: Emily draws 50 stars.
Then she draws 20 hearts. How many more stars than hearts did she draw?