Lesson: Simplify Expressions/Combine Like Terms

35258 Views
184 Downloads
36 Favorites

Lesson Objective

SWBAT simplify expressions by combining like terms.

Lesson Plan

 

Element/Time

Teacher

Do Now

(8:30 – 8:40)/(10:00 –10:10) 

·         Teacher walks around to greet students and check in with students about their do now and homework

HW Check

·         Teacher walks around to help/spot check student HW

Mental Math

(8:40 – 8:50) /(10:10 – 10:20)

·         Teacher reads and reveals a series of 6 problems – helping students to think of strategies to help students solve the problems

·         Teacher pulls sticks (cold call) to have students answer the questions

Mini Lesson

(8:50 – 9:25)/(10:20 – 10:55)

Intro:

·         Today we are going to look just expressions.  Who can remind me what an expression is? (cold call) expressions are mathematical phrases – they don’t have equal signs

·         Sometimes expressions are written so that they

have lots of different terms.   

·         We are able to combine any terms that are similar or “like” 

·         A like term is when a term has the same variable attached to it.  

·         Demonstrate visually a expression with many terms (use hands on equations materials – putting the like with like (white pieces with white pieces and blues with blues)

·         We can put together terms that are the same – demonstrate with materials.

·         Let’s see what we did with mathematical symbols.

·         Focus students that when combining the like terms you are just adding the coefficients together – example 2x + 3x  combines to 5x

·         Walk through several examples of subtracting to combine like terms – what happens when there is a subtraction sign – it means we are taking away some of the terms.

Guided:

·         Have students use materials to model an expression.

·         Then explain to students that they can put together any thing that is the same.

·         Ask students to show what was done with symbols.

 

Independent:

·         Complete worksheet

Closing:

·         What did we learn?

·         Like terms can be combined together

·         Why is important?

·         What are some common mistakes?

What does successful work look like/sound like?

Skills Time

(9:35- 9:50) /(11:05-11:25)

Review of shapes work 

 

Lesson Resources

Notes Simplify Expressions   Notes
12,113
HW Combine Like Terms 1  
14,258
HW Combine Like Terms  
7,388
CW Combine Like Terms  
9,886
U8 L3 Finding the Unknown Combine Like Terms Evaluate Expressions  
5,490

Close

 
Something went wrong. See details for more info
Nothing to upload
details
close