4th Grade Math 11.5, Word Problem Solving, Unknown Angle Measures

We can use what we know about angles, and the strategy draw a diagram, to solve angle measurement problems. We can use the relationship between the known and unknown angle measures to draw a bar model. We can use the bar model to write an equation. We review the steps to solving word problems. We solve four word problems involving unknown angle measures. We see how extending lines or rays, then using what we know about straight angles and right angles, will help us solve a problem. We see how an angle will not change if we extend its rays. We review acute, right, obtuse, and straight angle measures.

4th Grade Math 1.7, Subtract Whole Numbers with Regrouping, Renaming
   • 4th Grade Math 1.7, Subtract Whole Nu...  

4th Grade Math 1.8, Word Problem Solving, Comparison Problems with Addition & Subtraction
   • 4th Grade Math 1.8, Word Problem Solv...  

4th Grade Math 3.7, Word Problem Solving, Multiply 2-digit Numbers
   • 4th Grade Math 3.7, Word Problem Solv...  

4th Grade Math 4.11, Divide 1-Digit Numbers, Check With Multiplication
   • 4th Grade Math 4.11, Divide by 1 Digi...  

4th Grade Math 4.12, Word Problem Solving, Multi-Step Division Problems
   • 4th Grade Math 4.12, Word Problem Sol...  

4th Grade Math 11.1, Angles & Fractional Parts of a Circle, or Clock
   • 4th Grade Math 11.1, Angles & Fractio...  

4th Grade Math 11.2, Degrees & Fractional Parts of a Circle
   • 4th Grade Math 11.2, Degrees & Fracti...  

4th Grade Math 11.3, Measure Angles, Draw Angles
   • 4th Grade Math 11.3, Measure Angles, ...  

4th Grade Math 11.4, Join & Separate Angles
   • 4th Grade Math 11.4, Join & Separate ...  

4th Grade Math Playlist
   • 4th Grade Math Course  

I'm using the Houghton Mifflin Go Math!
2015 copyright textbook for this playlist.

You can practice online using the textbook's website
https://www.gomathacademy.com/

YouTube rating for JoAnn's School videos:
L0 - No strong language
N0 - No nudity
S0 - No sexual situations
V0 - Not violent or disturbing
D0 - No drug reference or content
F0 - No flashing lights content

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