Summary of Lesson Plan:
Australian Curriculum Links:
- Recall multiplication facts of two, three, five and ten and related division facts (ACMNA056)
Lesson Plan Sequence:
In this lesson the learners will:
Use arrays to understand multiplication is repeated addition.
Orientation 5 minutes
- Focus: Students attention to video.
- Engage: Show students animated video about multiplication https://www.youtube.com/watch?v=lk4KIIcDr9E
- Access: What is multiplication?
Explain rows and columns in arrays. Give students a problem, such as 3×4 and model this problem on graph paper using counters. Emphasize this as 3 groups of 4, so you need three lines with four counters in each line. Also show how this is repeated addition, such as 3×4 = 4+4+4.
Give students a range of problems to model on graph paper using counters. After students have modelled the problem they write the problem in their numeracy books along with repeated addition, such as 3×4 =/same as 4+4+4.
Graphing an Array: Give students graph paper and cards with multiplication problems for 2’s and 3’s times tables. Students cut out the problem and then cut out the matching array on graph paper to model the problem. Students stick the problem and the array into their numeracy books and write the answer to each problem.
- Support: Students work in the lower 2’s and 3’s time tables.
- Extend: Students work in the upper 2’s and 3’s time tables.
- Share/Explain/Justify/Reflect: Ask students to share their work with the class? Did you find these activities useful in learning about multiplication?
- Consolidate: Misconceptions?
- Challenge/Extend: Who thinks they can now go onto more challenging multiplication? What is 6×7? How many rows and how many columns would a 6×7 array have?
- Observation and Anecdotal Notes
- Review graph paper for understanding
- Graph Paper
- Multiplication Cards
- 2cm Grid Paper (PDF)
- Multiplication Problem Cards (Support) (DOC)
- Multiplication Problem Cards (Extend) (DOC)
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