Q4 4th Grade Math Review

4th Quarter Review: 4th Math

What We've Learned So Far:

• Fractions

• Shapes & Symmetry

• Lines

• Angles

• Triangles

• Polygons

• Perimeter

• Area

• The top number is the numerator

• The bottom number is the denominator

• LCM -> Least Common Multiple

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Fractions

Multiple Choice

What is the denominator of the fraction $$\frac{1}{4}$$ ?

• 1

• 4

Multiple Choice

What is the numerator of the fraction $$\frac{7}{15}$$ ?

• 7

• 15

Multiple Choice

Add these fractions: $$\frac{4}{8}+\frac{3}{8}$$

• $$\frac{1}{8}$$

• $$\frac{43}{8}$$

• $$\frac{12}{8}$$

• $$\frac{7}{8}$$

We watched the Forces of Nature documentary

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Shapes

Open Ended

What do you remember about the Forces of Nature documentary we watched? All answers that show effort are valid.

• Symmetry is a noun that means balanced proportions.

• Symmetrical is an adjective that means a shape or object can be divided into identical pieces.

Symmetry

Draw

Draw all of the lines of symmetry on this shape that you see

• Parallel - two lines that never touch

• Perpendicular - two lines that make a perfect right angle when they meet

• Intersecting - two lines that meet

​

Lines

Draw

Draw an example of parallel lines

Draw

Draw an example or intersecting lines

• Acute angles measure less than 90 degrees

• Right angles measure exactly 90 degrees

• Obtuse angles measure more than 90 degrees

​

Angles

Multiple Choice

I am thinking of an angle that is $$46\degree$$ . What kind of angle am I?

• I don't know

• acute

• right

• obtuse

Multiple Choice

I am thinking of an angle that is $$136\degree$$ . What kind of angle am I?

• I don't know

• acute

• right

• obtuse

Multiple Choice

I am thinking of an angle that is $$96\degree+6\degree$$ . What kind of angle am I?

• I don't know

• acute

• right

• obtuse

Multiple Choice

I am thinking of an angle that is $$80\degree+10\degree$$ . What kind of angle am I?

• I don't know

• acute

• right

• obtuse

• Equilateral triangles have 3 congruent (equal) side lengths

• Isosceles triangles have 2 congruent (equal) side lengths

• Scalene triangles have no congruent (equal) side lengths

Triangles

Multiple Choice

What type of triangle is this?

• I don't know

• equilateral

• isosceles

• scalene

Open Ended

In your own words, what is the difference between isosceles triangles and scalene triangles?

• Regular Polygons: all sides are equal in length and angle measure

• Irregular Polygons: not all sides are equal in length and angle measure

​

Polygons

Draw

Circle all of the regular polygons

• Perimeter is for outside of a shape

• The perimeter of regular polygons can be found two ways:

  • 1. adding all of the sides together

  • 2. (length+width)×2

• The perimeter of irregular polygons can be found by adding all of the sides together

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Perimeter

Open Ended

What is the perimeter of this shape? How many feet?

Open Ended

What is the perimeter of this shape? How many feet?

Multiple Choice

How do you find the perimeter of a shape?

• adding some of the sides

• adding all of the sides together

• length $$\times$$ width

• 2 $$+$$ length $$+$$ width

• Area is for the inside of a shape

• Area is found by multiplying the base (B) by the height (H)

  •   B x H

• Area is measured in square units

  • ft² , yd² , in² , cm²
    

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Area

Multiple Choice

What does the B stand for in the area formula?

• base

• batgirl

• bacon

• bars

Multiple Choice

What does the H stand for in the area formula?

• hello

• high

• height

• help

Multiple Choice

A board has a base of 9 inches and a height of 3 inches. What is the area of the board?

• 24 in

• 24 $$in^2$$

• 27 in

• 27 $$in^2$$

Multiple Choice

A square has a base of 5 yards. What is the area?

• 25 $$in^2$$

• 20 $$in^2$$

• 25 in

• 20 in

Open Ended

I still need help with...

- Mx. B

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