Curated OER
Counting with Base - Ten Models
Help your kids develop strategies for counting. In this base-ten lesson, learners use matching cards, base 10 blocks, and dry erase markers and boards to examine the base 10 counting system.
Illustrative Mathematics
How Many Colored Pencils?
Support young mathematicians' interpretation of place value in order to multiply single-digit numbers by 10. The task builds upon and enhances a learners' understanding of place value, a second grade skill, while introducing them to...
Curated OER
Block Heads
Students demonstrate whole numbers through one thousand using base ten blocks. They model and describe given numbers using ten blocks.
Curated OER
Using Groups of Ten to Solve Problems
Upper graders solve math problems involving multiplication using specific strategies. They will use base-ten blocks, hundreds charts, and number lines to solve multiplication problems. Then they will practice several of the strategies...
Curated OER
Planetary Place Value
Third graders explore place value to the ten thousands place. This incredibly thorough, 24-page lesson has learners construct, order, and compare numbers to 9,999. This three-day lesson includes reteaching and extension activities...
National Security Agency
Expanding Place Value
Learners explore place value. This incredibly thorough and valuable mathematics lesson, has students make a number wheel to assist in the completion of a Place Value worksheet. Students use manipulatives and a place value mat to further...
Illustrative Mathematics
Rounding to 50 or 500
In a six-problem learning activity, children are guided to solve word problems that involve rounding to the nearest ten and nearest hundred. A commentary and answer key provide different approaches that learners may take in solving the...
Curated OER
Building Numbers to 50
Students explore how to represent numbers using cubes and draw them accordingly. They discuss place value and the base ten number system using manipulatives. Students roll a dice and take that many blocks. They write down their resulting...
Primary Junction
Adding Tens
Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...
Curated OER
Ten More and Ten Less
Get learners to analyze two-digit numbers based on place value, and use manipulatives to add and subtract both 1 and 10. A place value chart is available, and you can project it during guided practice. Through visualizing numbers,...
Curated OER
All Kinds of Numbers
Count and compare numbers and fractions using "greater than" and "less than." Learners count on by 2s and 10s and represent the end number with base ten blocks, counters, and cups. They use circle stickers to illustrate fractions and...
Curated OER
Multiply With a Two-Digit Number
Fourth graders demonstrate how to multiply two-digit numbers. In this multiplication computation lesson, 4th graders use base ten blocks to model how to multiply two-digit numbers. Students use the blocks to represent the given two-digit...
Curated OER
Mathematics Lesson Plan
Second graders study subtraction facts. In this mathematics lesson, 2nd graders discuss how to solve two digit subtraction problems. Students recognize that there are many different methods or strategies one can use such as using...
Curated OER
Extending our Knowledge of Place Value
Students demonstrate their knowledge of place value through auditory, visual, and kinesthetic channels. In this place value lesson, kinesthetic learners work with a partner using both sets of hands to represent 2 digit numbers. Visual...
Curated OER
Trading in Subtraction
Second graders solve two-digit subtraction problems without trades using counters and by modeling trades with base-ten blocks. They pair in groups and students open the "Counters Open Mat". Students are given a problem, such as: there...
Curated OER
What's in the Bag?
Help your students identify the attributes of two-dimensional shapes. They read the book Round is a Mooncake, and use pattern blocks to sort shapes. Students sort shapes according to their attributes.
Curated OER
How Many Thousandths Are in Your Box?
Young scholars identify the different place values. In this algebra lesson, students represent decimal place values with manipulatives. They identify the correct place value using commas and mathematical reasoning.
Curated OER
Number and Operations- Using Gift Certificates
Learners apply number and operation skills to learn how to spend a gift certificate. For this mathematical reasoning lesson, students use base 10 blocks as money and calculate how much money they have.
Curated OER
Math: It's About Patterns
Fourth graders discover place value patterns through various games and readings and record their findings in journals. In pairs, they use manipulatives such as place value tents and digit cards to drill and practice writing numbers in...
Curated OER
Roll `Em!
First graders engage in using base ten blocks and dice for a fun engaging math lesson. They use a worksheet imbedded in this lesson as the game board to help them play this math game.
Curated OER
How Many Ways?
Second graders develop number sense. For this number sense lesson, 2nd graders use multiple ways to represent numbers including written numerals, tally marks and manipulatives. Students correctly use place value to the thousands place.
Curated OER
Mental Math Blocks 2
In this math worksheet, students solve eleven math problems. The problems include word problems from a variety of topics, such as money and tickets needed for a concert.
Curated OER
Block It: Using a Manipulative to Solve Math Problems
Students practice using visuals to solve math problems. In this math manipulative lesson, students utilize pattern blocks to participate in a class game in which geometric shapes touch other player's pieces. Students gain points based on...
Curated OER
Playing with Tens and Ones
First graders complete a number of activities that increase their number sense and use of simple operations. They use dice and worksheets to make two-digit numbers and to record them, they count by tens and ones, and order numbers using...