Curated OER
Types of Chemical Reactions
Students understand the difference between four different types of chemical reactions: composition, synthesis, single replacement, and double replacement and identify the type of reaction and predict the products of these types of...
Helping with Math
Fractions: Subtracting Mixed Numbers (Same Denominator)
This straightforward activity simply provides practice subtracting mixed numbers. There are 18 problems to solve, all of which deal with common denominators. Not exciting, but serves its purpose.
Curated OER
My Math Curse!
Math novices examine how math can help them in real-world situations. They listen to the book The Math Curse by Jon Scieszka, solve various word problems from the book, explore various math websites, write original math word problems,...
Pennsylvania Department of Education
Shapes Around Us
Learners use manipulatives to study shapes. They sort shapes and use correct geometric terminology to describe them. Students find real-life examples of 2 and 3 dimensional shapes, and classify figures in their classroom according to...
Curated OER
All A-buzz About Math
Second graders participate in Math-Eze activities to comprehend word problems. In this word problem lesson, 2nd graders recognize why a hexagon is the best shape for a beehive. Students calculate how far bees must travel to find 2 lbs....
Curated OER
Fractions and Fact Families: Jump Kangaroo Jump!
Second graders practice with fractions and fact families. In this fractions and fact families lesson, 2nd graders participate in a series of activities to assist them with understanding fractions. Activities include graphing,...
Curated OER
Activity #13 Changing The Look of Sugar
Learners observe what happens when sugar is dissolved in water and when it is heated. They weigh the products after each of the two experiments on a balance scale. Pupils distinguish between physical and chemical changes. Students are...
Curated OER
Numbers Make Sense
Second graders explore number values by completing estimation problems in class. In this place value lesson, 2nd graders identify the use of decimals in numbers and how they relate to fractions or parts of a whole. Students utilize flash...
Curated OER
Global Warming Quiz
In this global warming quiz worksheet, students compete a set of 12 multiple choice questions. Page contains a links to answers and additional activities.
Curated OER
Fractions: Adding Same Denominator
In this math activity, students look for the answers to the addition with fractions of the same denominator. There is a button at the top of the page for the answers.
Helping with Math
Fractions: Adding Mixed Numbers (Same Denominator)
Add 30 sets of mixed fractions that have common denominators. Elementary math minds get plenty of practice with this printable page. You will find the answers provided with the click of a box in the upper left corner of the web page.
Curated OER
Composting -- Nature's Disappearing Act
Studenst work together to discover the concept of biodegradability. They build a model of a landfill and how different items decompose. They examine how engineers use this information for better waste management.
Curated OER
Can Fun Gus Help Plants/Trees Grow?
Students participate in an experiment in which they test the growth of different types of plants. They discover how growth rates vary using inoculum. They draw pictures and are read books about plants to end the lesson.
Curated OER
Code Makers - Electron Configuration, Aufbau Principle
Learners write the electron configuration of elements using the Aufbau principle. In this chemistry lesson, students build their own key that demonstrates the principle.
![Illustrative Mathematics: Addition and Subtraction Fluency Set of Tasks [Pdf] Lesson Plan](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Illustrative Mathematics: Addition and Subtraction Fluency Set of Tasks [Pdf] Lesson Plan")
Student Achievement Partners
Illustrative Mathematics: Addition and Subtraction Fluency Set of Tasks [Pdf]
Students explore the relationship between addition and subtraction and develop an understanding of decomposing numbers in different ways in this first-grade lesson plan.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.
Other
Composting Practices (Pdf) [Pdf]
This publication explains the agricultural and environmental benefits of composting household waste. It explains the difference between hot and cool composting systems. It also documents research indicating turfgrass benefits from humus...
CK-12 Foundation
Ck 12: Life Science: 12.17 Consumers and Decomposers
Learn the difference between consumers and decomposers in the ecosystem.