Lesson Plan
Willow Tree

Histograms and Venn Diagrams

For Students 9th - 12th Standards
There are many different options for graphing data, which can be overwhelming even for experienced mathematcians. This time, the focus is on histograms and Venn diagrams that highlight the frequency of a range of data and overlap of...
Lesson Plan
Curated OER

Place Value Made Simple

For Teachers 3rd - 5th Standards
Elementary schoolers explore place value to the millions place. They construct and evaluate the value of numbers. Working in small groups, pupils problem solve with pocket place value charts, and examine standard and expanded forms. This...
Activity
Illustrative Mathematics

Why Randomize?

For Teachers 9th - 12th Standards
Your statisticians draw several samplings from the same data set, some randomized and some not, and consider the distribution of the sample means of the two different types of samplings. The exercise demonstrates that non-random samples...
Worksheet
Helping with Math

Factors With Prime and Composite Numbers (1 of 2)

For Students 4th - 6th Standards
Math monsters examine nine numbers, factor them, and then determine if they are composite or prime. You can print this worksheet off of the website, but it does not fit neatly onto one page. Consider projecting it on your class screen...
Lesson Plan
National Security Agency

Sampling for a Rock Concert

For Teachers 7th - 10th Standards
Over the course of three class periods, middle schoolers design an experiment to provide learner input to administration about which rock band to invite to play at school. They practice several random sampling exercises, all well...
Worksheet
Helping with Math

Identifying and Writing Decimals up to Hundredths

For Students 4th - 5th Standards
Five sets of blocks representing whole units, tenths, and hundredths are grouped so that learners can evaluate the total values. This provides practice with place value and the use of decimals. Answers are included. The brevity of this...
Lesson Plan
Curated OER

Spelling Counts!

For Teachers 3rd - 12th
Play a game to practice spelling and math. By assigning a numerical value to each letter of the alphabet, you can engage learners in "spy" coding and decoding activities that reinforce grade-appropriate spelling and math skills....
Lesson Plan
Curated OER

An Easier Way to Count: Using Groups of 10

For Teachers 1st - 2nd
Students explore their counting skills. In this counting lesson plan, students group objects in sets of 10 to practice counting them. Students also practice graphing the sets of objects they count.  This lesson plan...
Lesson Plan
Curated OER

Rule of Quarters

For Teachers 9th - 11th
Students memorize four key decimal values for quick and accurate conversion. They convert decimal foot measurements to inches and fractions using math tables, computation or memorization. They memorize decimal foot conversions.
Lesson Plan
Curated OER

Calendar Time

For Teachers K Standards
Use circle time to work on counting. Kindergarteners practice the months of the year, say the full date, chart the day's temperature, count to 100, and sing the alphabet song. This kind of daily routine cultivates deep roots for...
Lesson Plan
Curated OER

Triangle Inequality

For Teachers 4th - 6th
Students discover that the sum of the lengths of any two sides of a triangle must be greater than the third side. They are shown how a triangle is formed using three strips such as that the triangle is seen inside the strips.
Lesson Plan
Curated OER

Comparing and Ordering Greater Numbers

For Teachers 3rd - 4th
Students compare and order greater numbers. In this place value lesson, students use a place-value chart to identify which set of numbers has the greatest value.
Worksheet
Curated OER

Grouping Tens and Ones

For Students 2nd
In this grouping tens and ones learning exercise, 2nd graders group the tens and ones, write the number, find it on the chart and color it a certain color.
Worksheet
Curated OER

Skip Counting: Homework

For Students 3rd - 4th
In this skip counting activity, students use the hundreds chart to help them count by 5's and color the numbers red that fit that pattern. Students then follow the pattern for the final set of problems and write in the missing numbers...
Lesson Plan
Curated OER

Comparing and Ordering Greater Numbers

For Teachers 4th - 5th
Students line up the digits of the numbers they are comparing in the correct manner. In this comparing numbers instructional activity, students learn to line numbers up correctly on a place value chart before comparing them. Students...
Worksheet
Curated OER

Standard, Expanded, and Written (F)

For Students 4th - 5th
In this number form worksheet, students complete the chart by writing the numbers into standard, expanded, or written forms. Students complete 6 examples of number forms.
Worksheet
Curated OER

Standard, Expanded and Written (D)

For Students 4th - 5th
In this number form worksheet, students complete the chart by writing the numbers in standard, expanded, and written forms. Students complete 7 examples.
Lesson Plan
Curated OER

Ordering Greater Numbers

For Teachers 3rd
Third graders identify the place value of greater numbers. In this number sense lesson, 3rd graders use a place value chart to properly write a specific number. Students read the number and use the place value map for reinforcement.
Lesson Plan
Curated OER

Prime Real Estate

For Teachers 4th - 6th
Pupils analyze and discuss prime numbers and the Sieve of Eratosthenes, a procedure to sort out prime numbers. They identify the prime numbers from 1-100 by eliminating all the multiples of the first four prime numbers, and circle what...
Worksheet
Curated OER

Ways to Add

For Students 4th - 5th
In this addition worksheet, students learn several different options to add the numerals twenty-four and thirty. The options are models, mental math, a hundreds chart, or pencil and paper.
Worksheet
Curated OER

Create and Solve

For Students 2nd
In this word problem worksheet, 2nd graders solve 6 math riddles. They use a hundreds chart as needed to start at a given number and add on to find the answer.
Worksheet
Curated OER

Counting Challenge

For Students 2nd - 3rd
In this counting activity, learners analyze a hundred chart and answer 5 questions about it. Students will be counting by 5s or 10s.
Lesson Plan
Curated OER

Book Title: Counting Crocodiles by Judy Sierra

For Teachers K - 1st
Students explore number sequence in a variety of activities. In this number practice lesson, students play a game of finger flash and read the book Counting Crocodiles. Students discuss the counting elements in the book and chart the...
Worksheet
Curated OER

Hundred Chart: Counting by 3

For Students 1st - 2nd
In this hundreds chart by 3 worksheet, students fill in the blank spaces on the chart, counting by 3. A reference website for additional resources is given.