Stamp Game Home Material from Walden Green Montessori 1

1

1

10

10

10

100

100

1,000

1

1

1

10

10

10

100

100

1,000

1

1

1

10

10

10

100

100

1,000

1

1

1

10

10

10

100

100

1,000

1

1

1

10

10

10

100

100

1,000

1

1

1

10

10

10

100

100

1,000

1

1

1

10

10

10

100

100

1,000

1

1

1

10

10

10

100

100

1,000

1

1

1

10

10

10

100

100

1,000

Mark RoessingMontessori Stamp Game Material

Checkerboard Home Material from Walden Green Montessori

million(s) hundred thousand(s) ten thousand(s) thousand(s) hundred(s) ten(s) unit(s)

x 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4

5 6 7 8 9

cut out bead bars & numbers

Mark RoessingMontessori Checkerboard Material

Fraction & Percentage Home Material from Walden Green Montessori

FRACTION/PERCENTAGE CHART

ADDING & SUBTRACTING FRACTIONS

=

=

x __ x __

LCD LCD

DIRECTIONS:

Before you can add or subtract fractions with different denominators, you must first find equivalent fractions with the same denominator.

1. Write the original equation in the green area.

2. Find the smallest multiple (Lowest Common

Multiple - LCM) of both numbers in the green denominator.

3. Write this number in both of the red denominators*.

4. Multiply each green numerator by the same number that was needed to get the red denominator. Write these numbers next to the orange multiplication signs.

5. Solve the red equation with the common denominators. Reduce if necessary.

*When working with fractions, the LCM is called the least common denominator (LCD).

MEASUREMENT CONVERSIONS

X =X =X

X =XX

CONVERSIONS

1 ft 12 in

1 yd 3 ft

1 mi 5,280 ft

1 mi 1,760 yd

1 m 100 cm

1 km 1,000 m

1 c 8 oz

1 pt 2 c

1 qt 2 pt

1 gal 4 qt

1 kg 1,000 g

1 g 1,000 mg

1 hr 60 min.

1 day 24 hr

1 yr 52 weeks

1 week 7 days

1 l 1,000 ml

1 kl 1,000 l

1 lb 16 oz

1 ton 2,000 lbs

per per

perperper

per per per per

ROUNDING MOUNTAIN

COORDINATE GRAPHING/PLANE

9

8

7

6

5

4

3

2

1

-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9

-1

-2

-3

-4

-5

-6

-7

-8

-9

QUADRANT 1

QUADRANT 4 QUADRANT 3

QUADRANT 2

x

y

G.C.F. & L.C.M.

DECIMAL BOARD 1,000,000

million

100,000

hundred-thousand

10,000 ten-thousand

1,000 thousand

100

hundred

10 ten

1

unit

0.1 tenth

0.01

hundredth

0.001 thousandth

0.0001

ten-thousandth

0.00001

hundred-thousandth

0.000001

millionth

by Mark

“and”

MONTESSORI CHECKERBOARD

__1/4 __2/4 __3/4

__1/6 __3/6 __4/6 __5/6__2/6

__1/8 __4/8 __5/8 __6/8__2/8 __3/8 __7/8

ROUNDING FRACTION NUMBER LINES

PROPORTION/RATIO CHART

:

:=

ADD SUBTRACT MULTIPLY DIVIDE

more than

altogether

sum

total

in all

combined

less than

take away

fewer

difference

“how many more”

minus

times

product

groups of

of

each

twice, triple

share

split equally

quotient

equal groups

goes into

(a fraction) of

KEY MATH PHRASES