In this geometry worksheet, learners measure various angles. First, they write what type of angle each one is, whether right, acute, or obtuse. Then students estimate the measurement and then write the actual measurement for each angle.

In this multiplication instructional activity, students solve 40 problems in which two and three digit numbers are multiplied by single digits. Students are encouraged to use estimation to do mental math. This page is intended as an...

In this math estimation learning exercise, learners estimate how many centimeters it is from each dot in a dot to dot puzzle. Students then use a ruler to measure exactly.

In this problem solving worksheet, students examine 2 math word problems taking care to decide whether they should estimate answers or find exact answers

In this estimating practice worksheet, students examine 3 groups of objects and estimate and check how many objects there are in each group. Students also respond to 1 short answer question.

In this estimating instructional activity, students study the models of 15 dots arranged in a triangle, circle and pentagon. In each of 3 problems, students ring the dotted shapes that show more than 15 and cross out the dots that show...

In this division worksheet, 5th graders use division to find batting averages in 6 word problems. They divide the number of hits by the number of times at bat to find the quotients.

In this estimating or exact answers worksheet, students sharpen their problem solving skills as they solve 6 story problems.

In this estimate using tens worksheet, 2nd graders match three sets of toys with 3 jars by estimating using tens and reading the label on the jar.

In this probability learning exercise, learners complete an activity in which they then throw the die 50 times and record the number of even and odd outcomes. Prior to throwing their die, they make an estimation of how many even and odds...

In this comparing amounts worksheet, learners read the word problem and decide if amounts should be used in liters or milliliters. Students complete 6 problems and complete 18 more liter and milliliter estimation problems.

In this estimation worksheet, students estimate 7 given fractions to the nearest whole number. Answers are included on page 2.

In this estimation worksheet, students estimate numbers of items shown in pictures, then circle given groups of items, count and write totals. 

In this estimation worksheet, students estimate a set of 10 numbers to the nearest 10. A reference website for additional resources is given.

Lead a discussion on the similarities between the properties of area and the properties of volume. Using upper and lower approximations, pupils arrive at the formula for the volume of a general cylinder. 

Mathematicians need to know that not all numbers are rational. We approximate irrational number with rational numbers. That is why a calculator may be misleading. This task give learners an opportunity to see how rounding a number and...

If we stack up all the cross sections of a figure, does it create the figure? Pupils make the connection between the complete set of cross sections and the solid. They then view videos in order to see how 3D printers use Cavalerie's...

It's scary how fast bacteria can grow — exponentially. Class members solve exponential equations, including those modeling bacteria and population growth. Lesson emphasizes numerical approaches rather than graphical or algebraic.

This thirteen page data analysis worksheet contains a number of interesting problems regarding statistics. The activities cover the concepts of average measurements, standard deviation, box and whisker plots, quartiles, frequency...

Does a calculator give you the exact value of the square root of 2? Here, learners must decide if 1.414236 is equal to the square root of 2. They must also explain why the square root of 2 could never be equal to a terminating decimal....

In a radical expressions worksheet, learners use the Product and Quotient Properties of Square Roots to simplify a variety of square roots. The worksheet begins with simple radicals, progresses to radicals involving fractions and...

An outbreak of the swine flu on a school campus has caused an increase in the number of boxes of tissues sold by the school store. In a real-world-modeling activity, pupils use composition of functions to determine how the number of...

Develop young mathematicians' ability to compare fractions with investigation into the number 1/2. After brainstorming a list of fractions equivalent to 1/2, children identify a pattern in the numerators and...

How much land does a parcel hold? How much fertilizer does it take for a field of corn? Pupils answer these questions and more as they apply ratio reasoning and unit analysis.