Students examine water samples from a local stream. They identify various types of macroinvertebrates found in that water ecosystem and perform a quantitative macroinvertebrate survey to determine the stream's water quality.

Students estimate the extent of particulate air pollution present in their neighborhoods.

In this alphabet coloring worksheet, students identify the uppercase and lowercase letter Bb. Students color the image and words for the butterfly.

For this alphabet coloring worksheet, students identify the uppercase and lowercase letter y. Students color the image and words for the yolk.

Students examine how work is measured and name the units that are used to measure it.  In this science instructional activity students create their own story problem. 

In this alphabet coloring worksheet, students identify the uppercase and lowercase letter Cc. Students color the image and words for the cat.

Students gain a concrete introduction to the concept of ratios. They demonstrate the ability to create ratios using peanut butter and jelly. They, in groups, construct 6 different sandwiches using different amounts of each food.

Second graders explore the inverse relationship of addition and subtraction in a "hands-on" activity based on the fact families of ones, twos and threes.

In this math vocabulary worksheet, students complete multiple choice problems where they match the correct math vocabulary word to its definition. Students complete 15 questions.

In this math worksheet, middle schoolers solve the problems and simplify the fractions. Each of the sets is related to the instructional objectives.

Pupils count back with cubes to model subtraction problems. In this subtraction lesson plan, students compare sets of problems and record their results in a table.

Eighth graders use the sports pages of the newspaper to analyze the mean, median, mode and range of basketball statistics.

In this math vocabulary worksheet, students use a letter key code to match match vocabulary words to their definitions. A reference web site it given for additional activities.

In this math for fourth grade statistical charts worksheet, 4th graders answer 7 multiple choice questions in standardized test format about data, charts and graphs.

In this 4th grade statistics learning exercise, learners complete a total of 7 problems. An answer key is provided; problems are related to statistics.

In this math review for grade 4 (4.1) worksheet, 4th graders answer 25 multiple choice problems in standardized test format about all areas of 4th grade math.

Students investigate modular clock arithmetic and cryptography. They perform basic operations in modular (clock) arithmetic and encode and decode messages using simple shift and affine ciphers.

Learners participate in physical fitness activities. They role a dice and perform the activity associated with the dice number. Activities include push ups, toe touches, curl ups, jump rope, jumping jacks, sit-ups, and shooting a...

Students explore the concept of modular arithmetic and cryptography. For this modular arithmetic and cryptography lesson, students use applets to explore modular arithmetic using a clock and Caesar Ciphers. Students exchange their...

In this decimal vocabulary learning exercise, students match a set of 27 words to their correct definitions. Answers are included on page 2; a reference web site is given for additional activities.

In this math maze worksheet, students navigate their way through a maze using clues and spelling out math vocabulary words. A reference web site is included for additional activities. 

In this math vocabulary worksheet, students match the math vocabulary definitions to the letter shapes. Students write in 8 words in the letter shapes.

In this algebraic equations worksheet, student solve thirty word problems from single variable algebraic equations.  Two of the thirty problems are solved as examples.

In this functions worksheet, students complete a set of 4 function tables using a given rule, then answer a set of 3 additional related questions. Answers are included on page 2.