Curated OER
Cubed Containers
Learners explore volume in relation to centimeter cubes and other nonstandard units of measurement using small containers. They will use hands-on materials to practice this concept. You will need small objects and containers to set this up.
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Cuisenaire Mats
First graders use Cuisenaire rods to study the mathematical symbols =, <, > for the relationships is equal to, is less than, and is greater than. They use the rods to show visual explanations of common number combinations.
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Up We Go
First graders examine the use of number lines in problem solving situations in this series of lessons. They participate in activities in which they move forward and backward on number line on the playground before doing paper and pencil...
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Measurements: Inches
Children solve problems involving measurement using information taken from various items measured (wooden blocks and boxes). This is a particularly good lesson to use when introducing how to use a ruler and how to add inches together in...
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Subtraction Worksheet: Numbers to 19
For this subtraction worksheet, students solve 36 problems in which numbers below 20 are subtracted. The minuend has two digits and the subtrahend has only one.
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Easy Estimation
Students use estimation as a math strategy. Students estimate the number of small snacks that are presented to them. Students count the snack items after they have estimated how many there are, before the class snack on a daily basis.
Pennsylvania Department of Education
Links Away: Looking Back and Moving Forward
Students explore fact families. In this math lesson, students use links to model a fact family. Students solve addition and subtraction problems.
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Gremlins
First graders investigate the missing numbers on an equation chart in order to practice their addition and subtraction skills. They work with sums up to twenty and use up to twenty objects to work with subtraction equations. They listen...
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Chart Trivia
Students practice addition and subtraction problems and answer questions using greater than and less than. They chart information to create a graph on the computer.
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Visiting Grandma
First graders investigate the aspect of time, including days of the week using a calendar. They use problem solving strategies and a monthly calendar to find a solution to the problem.
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Counting From One
Students continue to practice counting by ones. Individually, they are given a story problem from their teacher and count numbers in their head only saying the final answer. To end the lesson, they count the objects in their classroom.
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Paint Plus
Using the computer and the Paint program, Students explore the different tools available in the paint program, and then create a picture showing two sets of pictures and an equation.
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The Nature of Mathematics
Students work in groups to describe plants using numbers. For this number lesson, students use numbers to define plants and then use numbers to write descriptions of themselves.
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Add With No Regrouping
In this finding the sums worksheet, students add one digit-numbers plus two-digit numbers with no regrouping. Students solve 30 problems.
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Place Value
First graders practice place value by completing problems that allow them to group 10 items together to create groups of 10 and see what is left over. In this place value lesson plan, 1st graders use cups to put 10 items in them, and...
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Piggies
First graders listen to the book, Piggies, and act out the events of the story with premade puffball pigs.
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The Grouchy Ladybug
Students complete a Cirlce Map about time. They recall times during the grouchy ladybugs travels, and add dots on ladybugs using turn-around facts. Pupils correctly sequence the events of The Grouchy Ladybug. Students compose new...
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Combining and Breaking Apart Numbers
First graders read Imogene's Antlers by David Small the create pipe cleaner antlers. Using these as a tool students combine and create number sentences. They continue to work through the framework of a software program.
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Jelly Belly: What a Wonderful "Bean"!
Young scholars explore how jelly beans are produced. They discuss the origins of the jelly bean and view a video about how jelly beans are prepared, tested, shaped, finished, and shipped and estimate the amount of jelly beans in a jar...
Pennsylvania Department of Education
Comparing Sets
Students 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.
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Counting on Measurement
First graders explore measurement. They measure by counting non-standard units. Students use a variety of non-standard units to predict and measure volume of various containers using rice.
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Trains
Learners compare the lengths of the train through calculation. This calculation can be done by knowing the values of the rods. Students use problem solving to get the answer to the problem before them.
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Subtraction Worksheet : Numbers to 19 (1 of 3)
In this subtraction worksheet, students find the differences to 53 horizontal and vertical subtraction problems. They work with numbers up to 19 and do not regroup while working.
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Subtraction - Numbers to 19 ( 3 of 3)
In this subtraction worksheet, students find the differences in 30 vertical problems which use numbers up to nineteen. They do not regroup as they solve the problems in which they subtract a single digit number from a two digit number.