Curated OER
Connecting Algebraic Reasoning to Models
Young scholars analyze relating a model to an algebraic equation and visa versa. Patterns are reviewed in detail and then in pairs new models are created and then translated into a word problem or equation. They illustrate their models...
Curated OER
Number Sense
First graders practice rounding 4 digit numbers using place value concepts. In this estimating sums and differences lesson, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.
Curated OER
Solving Problems
Second graders become familiar with need strategies for computation of money problems and estimating sums. In this computation lesson, 2nd graders solve real life problems to understand estimation and money problems.
Noyce Foundation
Boxes
Teach your class to think outside the box. Scholars use the concept of equality to solve a problem in the assessment task. They determine how to use a scale to identify the one box out of a set of nine boxes that is heavier than the others.
Curated OER
How Many Ways?
Second graders develop number sense. In 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
Printmaking Monoprints
Students learn the concept of monoprint and explore different methods of making prints. They also examine how an image in print is reversed. The exploration of non-objective art is used to help students utilize principles to create artwork.
Curated OER
The Miracle Fish: Learning to Design an Experiment
Learners develop procedures to explore the behavior of fish. In this scientific experiment lesson students from a hypothesis, write a question, identify different variables and controls in their experiment.
Curated OER
Constructing My Sundae
Eighth graders investigate concepts related to fractions. This includes adding, subtracting, and reducing. There is a creative worksheet that has them creating their own ice cream sundaes using fractions.
ABCya
Ab Cya: Base Ten Blocks
ABCya! Base Ten Blocks virtual manipulatives is to help students learn mathematical concepts including addition, subtraction, number sense, place value and counting.
SMART Technologies
Smart: Subtraction Strategies Using Base 10 Blocks
Everyday Math Lesson 6.5 using base-10 blocks.
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Base Ten Bag (Subtraction) [Pdf]
Students are to work with a partner to practice subtraction. Materials needed:Base 10 blocks (9 tens and 9 ones), numeral cards (0-9) and a paper bag.
Alabama Learning Exchange
Alex: Three Digit Subtraction
This lesson uses technology and literature to teach subtraction of three-digit numbers, including subtraction across zeros.
Other
Nearpod: Subtraction With Regrouping: Two Digit
In this lesson plan on subtraction, students will use the break apart strategy, draw a model, or the standard algorithm to subtract 2-digit numbers.
ABCya
Ab Cya: Base Ten Fun
Base Ten Fun is an educational virtual manipulatives activity for kids learning place value, addition and subtraction. Base Ten Fun is highly customizable; kids can select from ones, tens and hundreds.
George Mason University
Lesson Plans: Whole Number Algorithms Base Ten Blocks
Brief lesson plans that show how to use base ten blocks to do all four operations and a little bit of algebra.
Study Pad
Splash Learn: Common Core Math Standards 1.nbt.6
[Free Registration/Login Required] Practice subtracting multiples of 10 with this online game! Choose the correct answer to the question to collect coins. Problems are shown using base ten blocks as examples or number sentences.
Better Lesson
Better Lesson: Put It Together and Take It Apart
Second graders increase their understanding of place value by manipulating larger numbers.
Better Lesson
Better Lesson: Mentally Speaking!
Using base ten blocks and place value, 2nd graders explore how to become more fluent in adding and subtracting two-digit numbers without regrouping.