Intro to Number Patterns S2

Presentation

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Mathematics

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9th Grade

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Practice Problem

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Medium

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CCSS

6.NS.B.3, 6.EE.C.9, 3.OA.D.9

Standards-aligned

Devon MacDougall

Used 1+ times

FREE Resource

3 Slides • 4 Questions

Intro to Number Patterns

Determining rules for simple sequences

One way of thinking about this situation is that 4 matchsticks are needed to make a square.

Alternatively - every ADDITIONAL square you see means there are four MORE matchsticks than before.

So the number of matchsticks is always 4 times the number of squares.
Or algebraically, M = 4S

Consider these matchsticks

Multiple Choice

How many tentacles are there with 3 starfish?

Multiple Choice

What rule formula can we make to relate tentacles to starfish?

(S = number of starfish, T = number of tentacles in total)

S = 5T

ST = 5

T = S + 5

T = 5S

Multiple Choice

How many tentacles would there be with 25 starfish?

125

100

Multiple Choice

A cafe charges £2.50 for every coffee. Which rule connects the total cost (P) for the number of coffees ordered (C)?

P = 2.5C

P = 2.5 + C

C = 2.5P

2.5 = PC

Intro to Number Patterns

Determining rules for simple sequences

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