Algebra 1 Common Core Student Edition, Grade 8-9

(Marvins-Underground-K-12) #1

Concept Byte


Use W ith Lesson 1 -5

P


Always,


So m e t i m e s, o r N e v e r


@ Common Core State Standards
Prepares for A-CED.A.3 Represent constraints by
equations or inequalities...
MP 2

A s t a te m e n t c a n b e a lw a y s , s o m e tim e s , o r n e v e r tr u e. F o r e a c h a c t iv it y , w o r k w i t h a
group of 4 students. Take turns predicting each answer. If th e p r e d i c t o r g iv e s a c o r r e c t
answer and explanation, he or she scores 1 point. Otherwise, the first person w ho
p ro v e s th e p r e d ic t o r in c o r r e c t s c o re s 1 p o in t. W h o e v e r h a s th e m o s t p o in t s a t t h e e n d
of an activity wins.

Activity 1


Is each description al ways, somet i mes, or never t r u e a b o u t th e m e m b e r s of
your group?
1. t a k e s a n a l g e b r a c l a s s 2. l i v e s i n y o u r s t a t e


  1. plays a m usical instrum ent 4. is le s s t h a n 25 y e a rs o ld

  2. speaks m ore th a n one language 6. is ta lle r th a n 5 m

  3. has a sibling 8. p la y s b a s k e t b a ll


Activity 2


Suppose each member of your group takes one of the four cards at the right.
Will a group member al ways, somet i mes, or never have a number that fits each
description?


  1. greater than 2 10.


11. e v e n 12.


  1. prim e num ber 14.

  2. divisible by 2 16.


"A

Each member of your group substitutes any integer for x in each statement. Will a
group member al ways, somet i mes, or never have a tr u e s ta te m e n t?


  1. x - 2 is g r e a te r t h a n x. 18. x is less than x.

  2. 7 + x = x + 7


CMo r“HCOI X II *I r-HCO


  1. x + 0 = x 22. -4 + (3 + x) = x + (-4 + 3)

  2. x- 0 = 0 24. | x is g r e a te r t h a n x.


1 | Po w erA lg eb ra.co m J P S I Concept Byte Always, Sometimes, or Never 37
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