Lesson Notes By Weeks and Term v5 - Grade 1
Patterns: number patterns and simple rules – Week 10 focus
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Patterns: number patterns and simple rules – Week 10 focus
Download the Lessonotes Mobile South Africa app for faster lesson access on Android and iPhone.
Subject: Mathematics
Class: Grade 1
Term: 2nd Term
Week: 10
Theme: General lesson support
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This week, we're diving into the exciting world of patterns! Patterns are all around us, from the stripes on a zebra to the tiles on your kitchen floor. Understanding patterns helps us make predictions, solve problems, and appreciate the beauty of the world. In South Africa, recognizing patterns can help us understand things like the repeating designs in traditional beadwork, the sequence of events in a folktale, or even how farmers plant crops in rows. This week, we will focus on number patterns and simple rules that govern these patterns. Recognizing and creating patterns are foundational skills that will help you in many areas of mathematics as you grow.
A pattern is a sequence that repeats or follows a rule. Number patterns are simply patterns made up of numbers. In Grade 1, we focus on simple number patterns that have a constant difference. A constant difference means that the same number is added (or sometimes subtracted, although we’ll mainly focus on addition this week) each time to get the next number in the pattern. The rule is the description of what you do to each number to get to the next number.
Example 1: Growing Flowers Imagine you are planting a garden with your family in your backyard in Soweto. Each day, you plant more flowers.
Day 1: You plant 1 flower.
Day 2: You plant 2 flowers.
Day 3: You plant 3 flowers.
Day 4: You plant 4 flowers. What is the number pattern? 1, 2, 3, 4… What is the rule? Add 1 to the previous number. 1 + 1 = 2, 2 + 1 = 3, 3 + 1 =
4. What comes next? If you continue the pattern, on Day 5 you would plant 5 flowers.
Example 2: Sharing Marbles Let's say you have a bag of marbles to share with your friends in Durban. You decide to give each friend 2 marbles.
Friend 1: Receives 2 marbles.
Friend 2: Receives 4 marbles.
Friend 3: Receives 6 marbles.
Friend 4: Receives 8 marbles. What is the number pattern? 2, 4, 6, 8… What is the rule? Add 2 to the previous number. 2 + 2 = 4, 4 + 2 = 6, 6 + 2 =
8. What comes next? The next friend (Friend 5) would receive 10 marbles.
Example 3: Counting Oranges Imagine you're helping your grandmother pack oranges into bags at a fruit market in Cape Town. Each bag has 3 more oranges than the bag before it.
Bag 1: 3 oranges.
Bag 2: 6 oranges.
Bag 3: 9 oranges.
Bag 4: 12 oranges. What is the number pattern? 3, 6, 9, 12… What is the rule? Add 3 to the previous number. 3 + 3 = 6, 6 + 3 = 9, 9 + 3 =
1
2. What comes next? The next bag (Bag 5) would have 15 oranges.
Using Manipulatives: We can use counters (like small stones, beads, or even drawings of circles) to help us visualize and understand patterns. For the "Growing Flowers" example, you could arrange 1 counter, then 2 counters, then 3 counters, and so on. This helps you see the "add 1" rule. Guided Practice (With Solutions)
Question 1: What is the next number in the pattern: 5, 6, 7, 8, __?
Solution: The pattern is increasing by 1 each time. 5 + 1 = 6, 6 + 1 = 7, 7 + 1 =
8. Therefore, the next number is 8 + 1 =
9. Answer: 9 Question 2: What is the rule for this number pattern: 2, 4, 6, 8…?
Solution: We need to find the difference between each number. 4 - 2 = 2, 6 - 4 = 2, 8 - 6 =
2. The pattern is increasing by 2 each time.
Answer: Add
2. Question 3: Complete the pattern: 1, 3, 5, __, __.
Solution: Let's find the rule. 3 - 1 = 2, 5 - 3 =
2. The rule is add
2. To complete the pattern: 5 + 2 = 7, 7 + 2 =
9. Answer: 7, 9 Question 4: Use counters (drawings) to show the pattern: 4, 5,
6. What comes next?
Solution: Draw 4 circles, then 5 circles, then 6 circles. We can see we are adding one circle each time. So the next step would be to draw 7 circles.
Answer: 7 Question 5: I start counting at 2 and add 3 each time. What are the first four numbers in my pattern?
Solution: Start with 2. 2 + 3 = 5 5 + 3 = 8 8 + 3 = 11 Answer: 2, 5, 8, 11 Independent Practice (Questions Only)
What is the next number in the pattern: 1, 2, 3, 4, __?
What is the rule for this number pattern: 5, 10, 15, 20…?
Complete the pattern: 2, 4, 6, __, __. I start counting at 3 and add 2 each time. What are the first five numbers in my pattern?
What is the next number in the pattern: 0, 1, 2, 3, __?
Complete the pattern: 10, 11, 12, __, __, __.
What is the rule for the pattern: 4, 8, 12, 16? I am thinking of a pattern. The first number is 1, and the rule is "add 4". What are the next three numbers? You are collecting leaves. On Monday, you collect 2 leaves. On Tuesday, you collect 4 leaves. On Wednesday, you collect 6 leaves. If the pattern continues, how many leaves will you collect on Thursday? Look around your classroom (or home). Can you find any patterns? Describe them.