Math Salamanders Ltd.
Column Subtraction Two Digits Sheet 3
In this column subtraction with two digits worksheet, students use borrowing or regrouping to complete twelve two-digit problems.
Curated OER
Addition - Up to 20 Sheet 1
For this addition activity, students practice their addition with one- and two-digit numbers. Students complete the activity by solving twenty-five addition problems.
Math Salamanders Ltd.
Addition - Up to 20 Sheet 2
In this addition activity, learners practice their addition skills. Students complete the activity by filling in the missing number in each of the forty addition problems.
Math Salamanders Ltd.
Column Addition - 3 Digits Sheet 1
In this addition instructional activity, students add three-digit numbers together. Three problems have the students adding three three-digit numbers together. The students work through 15 problems.
Math Salamanders Ltd.
Column Addition - 3 Digits Sheet 4
In this column addition with three digits activity, students solve fifteen addition problems using carrying when needed; some of which have three addends.
Math Salamanders Ltd.
Column Addition - 3 Digits Sheet 6
In this addition worksheet, students complete a set of 12 problems, adding two- and three-digit numbers. Numbers must be arranged vertically and problems completed. A reference website is given for additional activities.
Math Salamanders Ltd.
Counting on by 1's, 2's, 5's, 10's, and 100's Sheet 2
Students count by either one, two, five, 10, or 100 as instructed. A website reference for additional resources is provided.
Math Salamanders Ltd.
Counting on by 1's, 2's, 5's, 10's, and 100's Sheet 3
Students count on by one, two, five, 10, or 100. A website reference for additional resources is provided.
Math Salamanders Ltd.
Counting Back by 1s, 2s, 5s, 10s, and 100s Sheet 3
Students count back by ones, twos, fives, 10s, or 100s as instructed. A website reference for additional resources is given.
Curated OER
Counting On and Back by 1s, 2s, 5s, 10s, and 100s Sheet 1
Students count on and back by ones, twos,10s, or 100s. A website reference for additional resources is provided.
Curated OER
Counting On and Back by 1s, 2s, 5s, 10s, and 100s Sheet 3
Learners count on or back by ones, twos, fives, 10s or 100s. A website reference for additional resources is given.
Curated OER
Amphibian Spawns
Students observe tadpoles as they gradually change into adults. In this amphibian biology lesson plan, students watch tadpoles in a tank in the classroom, keep a daily record of what they observe, and chart the growth development...
Curated OER
Ecology - Reproduction and heredity
Students correlate signs of spring with reproductive strategies of varioius organisms. They describe how organisms inherit traits from generation to generation.
Curated OER
Power Point Lesson Plan
Students create a multimedia animal research presentation based on the include criteria for both information and sideshow format. They follow directions on slide set-up from creating a slide to transitions and musical insertion.
Curated OER
Frogs Losing Ground
Middle schoolers explore an exhibit through an interactive program on frogs. They can listen to the different sounds frogs make and the different types of frogs. They search for the types of frogs they find in their local area.
Curated OER
Where Do I Belong?
Fourth graders work in groups. They are given magazines. Students cut pictures of five mamals, five birds, five reptiles, five amphibians, and five fish. They place the pictures in a plastic bag. Students switch bags. They are explained...
Curated OER
Natural Selection
Students estimate how many different species of organisms inhabit the Earth. In groups, they match the pictures of embryos at the different stages of development. They compare and contrast animals from the sky, land, and water and...
Curated OER
You...Instead of the Onion Skin
Students observe their own epithelial cells from the inside linings of their cheeks using DigiScope technology. They prepare a slide with both onion cells and epithelial cells and make an illustrated booklet for a PowerPoint presentation...
Curated OER
Frog and Toad are Friends
Students view a 30-minute video lesson plan to discover information about the characteristics of frogs and toads. They then transform themselves into frogs and participate in a Jumping Frog Jubilee. They work in groups of three to...
Curated OER
Examining the Stages of Ecological Succession
In this ecological succession worksheet, high schoolers answer questions about the process of succession in four ponds given diagrams and descriptions.
Curated OER
Animals and Their Coverings
Students investigate the coverings of vertebrates and invertebrates and cold-blooded and warm-blooded animals. In this animals and their coverings lesson plan, students observe displays of different animals and discuss and answer...
Curated OER
Life Means Water Environment
Students investigate pH levels in bodies of water and experiment with acid/base reactions. In this water and pH lesson, students observe changes in pH levels of a sample solution and observe a Bronsted-Lowry reaction. Students...
Curated OER
Dress Like A Frog
Young scholars recognize amphibian adaptations. In this amphibian lesson students explore amphibian adaptations that provide for successful living in their environments. A volunteer dresses up with all of the adaptations using everyday...
Curated OER
Web of Life Game: Trout
Students explore the concept of food webs. In this food web lesson, students demonstarte the connection between species. Students use a ball of string show how the food web works, then have a class discussion.
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