
Solve problems involving measurement and conversion of measurements from a larger unit to a smaller unit
4.MD.A.1 Know relative sizes of measurement units within one system
of units including km, m, cm; kg, g; lb, oz; l, ml; hr, min, sec. Within
a single system of measurement, express measurements in a larger unit
terms of a smaller unit. Record measurement equivalents in a twocolumn
table. For example, know that 1 ft is 12 times as long as 1 in. Express
the length of a 4ft snake as 48in. Generate a conversion table for feet
and inches listing the number pairs (1,12), (2,24), (3,36)…
Sample Activities:
Making a Kilogram
Measurement Concentration (ver. 1)
Also included in 4th Grade Math Centers:
** Measurement Concentration (ver. 2)
** Making a Pound
** One Gallon
** Capacity Creature
If You Were a Quart or a Liter, you could be a carton of ice cream, a jug of juice, or a can of motor oil. What else could you be if you were a quart or a liter?
4.MD.A.2 Use the four operations to solve word problems involving
distances, intervals of time, liquid volumes, masses of objects, and
money, including problems involving simple fractions of decimals, and
problems that require expressing measurements given in a large unit in
terms of a smaller unit. Represent measurement quantities using diagrams
such as number line diagrams that feature a measurement scale.
Included in 4th Grade Math Centers:
** Word Problems: Measurement Conversions
4.MD.A.3 Apply the area and perimeter formulas for rectangles in real world and mathematical problems. For example, find the width of a rectangular room given the area of the flooring and the length, by viewing the area formula as a multiplication equation with an unknown factor.
Sample Activities:
Fencing a Garden
Designing a Zoo Enclosure
Also included in 4th Grade Math Centers:
** How Many Tables?
** A Dinner Party
Spaghetti and Meatballs for All! presents concepts of area and perimeter in a realworld context. Mrs. Comfort carefully arranges eight tables and 32 chairs for a family reunion dinner. Then the guests arrive with their own seating plans! Use this book as a starting point for exploring whether shapes with the same area can have different perimeters, and vice versa.
Represent and interpret data
4.MD.B.4 Make a line plot to display a data set of measurements in
fractions of a unit (1/2, ¼, 1/8). Solve problems involving addition and
subtraction of fractions by using information presented in line plots.
For example, from a line plot find and interpret the difference in
length between the longest and shortest specimens in an insect
collection.
Sample Activity:
Objects in My Desk Line Plot
Also included in 4th Grade Math Centers:
** Length of Ants Line Plot
Geometric measurement: understand concepts of angle and measure angles
4.MD.C.5 Recognize angles as geometric shapes that are formed
whenever two rays share a common endpoint, and understand concepts of
angle measurement:
a. An angle is measured with reference to a circle with its center at
the common endpoint of the rays, by considering the fraction of the
circular arc between the points where the two rays intersect the circle.
An angle that turns 1/360 of a circle is called a “onedegree angle,”
and can be used to measure angles.
b. An angle that turns through n onedegree angles is said to have an angle measure of n degrees.
Sample Activity:
Angles in Circles
4.MD.C.6 Measure angles in wholenumber degrees using a protractor. Sketch angles of specified measure.
Sample Activities:
Angle Barrier Game
How Many Degrees?
Also included in 4th Grade Math Centers:
** Predicting and Measuring Angles
** Angles in Triangles
** Angles in Quadrilaterals
** Angles in a Right Triangle
Sir Cumference and the Great Knight of Angleland tells the story of Radius, the son of Sir Cumference and Lady Di of Ameter, and his quest to become a knight. Radius uses geometry and his knowledge of different kinds of angles to help him in his adventures. Use this book to introduce the concept of angles and the use of a protractor.
4.MD.C.7 Recognize angle measure as additive. When an angle is decomposed into nonoverlapping parts, the angle measure of the whole is the sum of the angle measures of the parts. Solve addition and subtraction problems to find unknown angles on a diagram in real world and mathematical problems, e.g., by using an equation with a symbol for the unknown angle measure.
Sample Activity:
Angle Measures (ver. 13)
Also included in 4th Grade Math Centers:
** Pattern Block Angles
** Word Problems: Unknown Angles