๐ Teaching Kids to Identify Groups of Ten: A Teacher's Guide
This lesson plan provides a practical approach to teaching children how to identify groups of ten within larger numbers. It emphasizes hands-on activities and visual aids to foster a concrete understanding of place value.
๐ฏ Objectives
- ๐ฑ Students will be able to identify groups of ten within numbers up to 100.
- โ Students will understand the concept of place value related to tens and ones.
- ๐งฎ Students will be able to represent numbers using groups of ten and ones.
Materials
- ๐งฑ Base ten blocks (or printable tens and ones)
- ๐ฌ Small manipulatives (e.g., counters, beans, candies)
- ๐ Worksheets with number identification exercises
- ๐๏ธ Markers or crayons
- whiteboard or chart paper
Warm-up (5 minutes)
- ๐ง Counting to 100: Start by having the students count aloud to 100 as a class. Emphasize the numbers that are multiples of 10 (10, 20, 30, etc.).
- ๐๏ธ Clap and Count: Lead a rhythmic activity where students clap their hands ten times, then pause. Repeat this several times to reinforce the concept of a group of ten.
Main Instruction (25 minutes)
- ๐งฑ Introducing Base Ten Blocks: Show students the base ten blocks. Explain that the long block represents ten, and the small cube represents one.
- ๐ค Grouping Activity: Give each student a pile of manipulatives (e.g., 23 counters). Have them group the counters into as many groups of ten as possible. Then, have them count how many individual counters are left over.
- โ๏ธ Recording Results: Guide students to record their results on a worksheet. For example, if they grouped 23 counters, they would write "2 tens and 3 ones".
- โ Mathematical Representation: Introduce the concept that $23 = (2 \times 10) + 3$. Use the base ten blocks to visually demonstrate this equation.
- ๐จ Visual Representation: Have students draw pictures representing numbers with groups of ten and ones. For instance, for the number 34, they would draw 3 groups of ten and 4 individual units.
Assessment (10 minutes)
- โ Quick Check Worksheet: Distribute a worksheet with numbers written on it (e.g., 47, 62, 81). Have students circle the groups of ten and underline the ones.
- ๐ฃ๏ธ Verbal Assessment: Call out numbers and ask individual students to tell you how many tens and ones are in each number. For example, "How many tens and ones are in 58?"
- ๐ข Manipulative Assessment: Give each student a number (e.g. 36) and ask them to represent the number using base ten blocks.
