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Lesson Plan: Introduction to Place Value – Day 2
This lesson is an introduction to place value for first grade students. It will span over two days. We will be working within the Number and Operations in Base Ten cluster. The standards that these two lessons will be addressing are:
1.NBT.B.2 Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:
• 1.NBT.B.2a 10 can be thought of as a bundle of ten ones — called a “ten.”
• 1.NBT.B.2b The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.
• 1.NBT.B.2c The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens (and 0 ones).
Note: During day one of this lesson, students spent time counting popsicle sticks and unifix. We began discussing how organizing the items into groups makes it easier to count them.
During day two, we will start the lesson with the warm up and fluency practice as we do every day. Then, I will have students come to the carpet to complete what we did during the previous lesson’s wrap up meeting. I will ask a student to consider how counting with different sized groups helped to organize the count. We will discuss how grouping by 10s makes it easy to count, using the days of school tracker to count up quickly to a larger number.
Since students used concrete models yesterday, I will show them how to organize pictorial representations into groups of tens by circling a group of ten. After modeling one, I will have different students demonstrate, being careful to create a group of ten and then using that to quickly count the objects.
Students will work independently to complete a worksheet where they circle groups of ten and find the total number of objects in a picture.
To summarize the lesson, some students will share their methods for counting (focusing on the count of 20 to see if any students made two groups of ten.) I will reinforce the efficiency of making groups of ten to count large numbers.
Worksheets:
Students will circle the objects and write the number represented in the box:
Extra Challenge Worksheets:
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