2.7B Use An Understanding Of Place Value To Determine The Number That Is 10 Or 100 More Or Less Than A Given Number Up To 1200

2.7B Use An Understanding Of Place Value To Determine The Number That Is 10 Or 100 More Or Less Than A Given Number Up To 1200 Lesson Plan for 2nd Grade Students

Topic: Understanding place value

Objectives & Outcomes

Students will be able to identify the Place Value Marks (tens, ones, hundredths) and use them to count to 100.

Students will be able to use their understanding of place value to determine the number that is 10 or 100 more or less than a given number up to 1200.

Materials

Pencils

Paper

Place Value Counters (optional)

Warm-Up

Review the Place Value Marks (tens, ones, hundredths) and have students practice writing them.

Review counting to 100 and have students practice counting out loud with the class.

Ask students to count to 100 by tens, asking them to use the Place Value Marks as they count.

Direct Instruction

Show students a number less than 100 and have them identify the Place Value Marks in the number.

Have students identify the tens and ones place in the number and write the corresponding numbers on the board.

Have students add the two numbers together to find the total.

Repeat this process with numbers up to 100, having students use the Place Value Marks and write the corresponding numbers on the board.

Guided Practice

Show students a number less than 100 and have them identify the Place Value Marks in the number.

Have students identify the tens and ones place in the number and write the corresponding numbers on the board.

Have students subtract the second number from the first to find the difference.

Repeat this process with numbers up to 100, having students use the Place Value Marks and write the corresponding numbers on the board.

Independent Practice

Have students work in pairs to find the difference between two numbers up to 100.

Have students use the Place Value Marks to identify the numbers and write them on the board.

Encourage students to use the strategy of subtracting the second number from the first to find the difference.

Have students share their answers with the class and explain their thinking.

Closure

Review the concept of place value and the use of the place value marks to identify numbers.

Ask students to share one thing they learned about place value during the lesson.

Assessment

Observe students during independent practice to assess their understanding of place value.

Review students' written responses to questions about place value.

Have students complete a brief quiz or worksheet to assess their ability to use place value marks to identify numbers.

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