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Simple Linear Patterns using diagrams and tables

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Presentation on theme: "Simple Linear Patterns using diagrams and tables"— Presentation transcript:

1 Simple Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a Square Numbers Triangular Numbers Simple Linear Patterns Harder Linear Patterns Flower Bed Investigation

2 Starter Questions www.mathsrevision.com
MTH 2-13a & MTH 3-13a Q1. Calculate Area and perimeter 5cm 2cm 3cm 4cm Q2. 30% of 200 Q3. Q4. If a = 1 , b = 2 and c = 4 Find

3 Simple Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a Learning Intention Success Criteria We are learning how tables can help us to come up with formulae for Simple Linear Patterns. Construct tables. Find the difference value in patterns. Using the difference value to write down a formula.

4 Simple Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a In an internet café 3 surfers can sit round a triangular table. 1 Table 3 Tables 2 Tables Task : Find a formula connecting the number of tables and the number of surfers.

5 Simple Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a 1 Table 3 Tables 2 Tables Fill empty boxes Step 1 : Number of Tables 1 2 3 4 5 Number of Surfers 3 6 9 12 15 3 3 3 3 Step 2 : Find difference Same difference linear pattern What is the formula

6 Simple Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a HINT : Let the number of surfers be the letter S and the number of tables be the letter T Step 3 : 2 4 5 1 3 Number of Tables 6 12 15 9 Number of Surfers 3 3 3 3 Can you write down formula connecting the number of surfers and the number of tables. S = 3 x T S = 3T

7 Simple Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a Key-Points Write down the 3 main steps 1. Make a table 2. Find the difference 3. Use the difference to write down the formula

8 Simple Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a Now try Ex 3 Ch11 (Page 135)

9 Complicated Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a Q1. Calculate Area and perimeter 10cm 3cm 6cm 7cm Q2. 32% of 200 Q3.

10 Complicated Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a Learning Intention Success Criteria We are learning how tables can help us come up with formulae for complicated Linear Patterns. Construct tables. Find the difference value in patterns. Calculate correction factor 4. Use the difference value to write down a formula connecting the table values.

11 Complicated Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a A pattern is made up of pentagons. Pattern 1 Pattern 3 Pattern 2 Task : Find a formula connecting the Pattern number and the number of sides.

12 Complicated Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a Fill empty boxes Pattern 1 Pattern 3 Pattern 2 Step 1 : Pattern Number (P) 1 2 3 4 5 Number of Sides ( S) 5 9 13 17 21 4 4 4 4 Step 2 : Find difference What is the formula Same difference linear pattern

13 Complicated Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a S = 4 x P Part of the Formula 2 4 5 1 3 Pattern Number (P) 9 17 21 13 Number of Sides (S) 4 Can you write down formula connecting the Pattern number and the number of Sides. Find a number so formula works Step 3 : Step 4 : S = 4P + 1 Correction factor “add on 1”

14 Complicated Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a Key-Points Write down the 4 main steps 1. Make a table 2. Find the difference 3. Write down part of formula 4. Find the correction factor and then write down the full formula

15 Complicated Linear Patterns using diagrams and tables
MTH 2-13a & MTH 3-13a Now try Ex 4 Ch11 (Page 139)

16 Created by Mr. Lafferty @www.mathsrevision.com
Starter Questions MTH 2-13a & MTH 3-13a 6 cm 10 cm 114o Sunday, 24 February 2019 Created by Mr.

17 Created by Mr. Lafferty @www.mathsrevision.com
Square Numbers MTH 2-13a & MTH 3-13a Learning Intention Success Criteria We are learning what a square number is. To understand what a square number is. Calculate the first 10 square numbers. Sunday, 24 February 2019 Created by Mr.

18 Square Numbers Write down the next square number MTH 2-13a & MTH 3-13a 16 1 4 9 42 Write down the first 10 square numbers. 24-Feb-19 Created by Mr.Lafferty Math Dept

19 Created by Mr. Lafferty @www.mathsrevision.com
Square Numbers MTH 2-13a & MTH 3-13a Now try Ex1 Ch11 (page 131) Sunday, 24 February 2019 Created by Mr.

20 Created by Mr. Lafferty @www.mathsrevision.com
Starter Questions MTH 2-13a & MTH 3-13a 8 cm 6 cm 122o Sunday, 24 February 2019 Created by Mr.

21 Created by Mr. Lafferty @www.mathsrevision.com
Triangular Numbers MTH 2-13a & MTH 3-13a Learning Intention Success Criteria We are learning what a triangular number is. To understand what a triangular number is. Calculate the first 10 triangular numbers. Sunday, 24 February 2019 Created by Mr.

22 Triangular and square Numbers
Which numbers are both square and triangular number Triangular and square Numbers Write down the next triangular number MTH 2-13a & MTH 3-13a 15 2 3 4 5 Write down the first 10 triangular numbers. 24-Feb-19 Created by Mr.Lafferty Math Dept

23 Created by Mr. Lafferty @www.mathsrevision.com
Special Patterns MTH 2-13a & MTH 3-13a Now try Ch11 (page 133) Sunday, 24 February 2019 Created by Mr.

24 Flower Bed Investigation
MTH 3-13a David is designing a flower bed pattern for the local garden show. He wants to use regular hexagonal shapes for the bed and slabs. This is the flower bed shape This is a slab shape

25 (Ensure that your paper is portrait) Flower Bed Investigation
Draw this design on the isometric dot paper provided. (Ensure that your paper is portrait) Flower Bed Investigation MTH 3-13a Here is the design that has one flower bed surrounded by slabs. How many slabs are required to surround the flower bed? 1 flower bed 6 slabs

26 Flower Bed Investigation
MTH 3-13a Now draw two flower beds surrounded by slabs. How many slabs are required to surround the flower bed? 2 flower bed 11 slabs

27 Flower Bed Investigation
MTH 3-13a How many slabs are required to surround the flower bed? Now draw three flower beds surrounded by slabs. 3 flower bed 16 slabs

28 Flower Bed Investigation
MTH 3-13a Task In your group discuss how best to record these results and work out a formula to calculate the number of slabs for given number of flower beds. As a group you are required to hand in a single solution for this task showing all working.

29 Flower Bed Investigation
MTH 3-13a Number Flower Beds (f) 1 2 3 4 Number of Slabs (s) 6 11 16 21 s = 5f + 1 126 How many hexagonal slabs are needed for 25 flower beds. If we had 76 available slabs how many flower beds could we surround 15

30 Flower Bed Investigation
MTH 3-13a Task What is the maximum number of flower beds you could surround if you had 83 slabs 16

31 Flower Bed Investigation
MTH 3-13a Homework Now align the flower beds vertically and investigate if the formula is still the same?

32 Vertical Flower Bed Investigation
MTH 3-13a Number Flower Beds (f) 1 2 3 4 Number of Slabs (s) 6 10 14 18 s = 4f + 2


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