In this activity, students will first begin by exploring the area and perimeter.  Tell your students to make a shape that has a specific area or perimeter and then give them time to explore and create.  As you go, make the math challenges more difficult.  When they have had a chance to explore, have them play the game.  The challenge is to see how many levels they can complete.  Keep in mind that the last level is unique in that students now have to create a shape with a specific area while creating a fraction of the shaded color like the second image below.

This Study Jam video does a great job demonstrating the differences between weather and climate.  It discusses how temperature and air pressure can change due to a change in elevation.

This video can also be used during reading units dealing with compare and contrast.

This "It's OK to be Smart" video discusses the human nose and its awesome ability to sense smells.  Please note that this video does talk about human sperm so you need to judge your students' maturity level.  Nerves, olfactory receptors, eyes, and ears are also discussed in the video.

This is a worksheet that will reinforce the properties of multiplication.  There are questions about the distributive property, the zero property, the commutative property, the associative property, and the identity property.

This music video might be a great way to start a Professional Development meeting.  In this video, a third-grade teacher sings about her wish for having a snow day.  It is sung to the tune of "Hello."  If you are a teacher, especially in the elementary schools then she nails our thoughts on the head with this song.  It is very well done and funny.

Use this assignment to help students understand the difference between a mineral and other objects that they might think are minerals. The activity doesn't take long but when you are discussing what a mineral actually is, this assignment gives your students practice. Students have a list of words that they need to sort into columns. One column is for minerals, the other column is for non-minerals. If they place an object into the non-mineral section they need to justify which rule was broken.

In this Study Jam video, students will get a better understanding of biomes.  Vocabulary that is discussed is biome, ecosystem, habitat, climate, and precipitation. A discussion of each of the biomes is also shown. 

This worksheet reviews the concept of area and perimeter.  Types of questions include the area of irregular shape, adding the total area of two rectangles, area, and perimeter word problems, creating rectangles with the same area but different perimeters, finding the unknown sides, and length times width.

This website gives teachers the ability to quickly create random numbers that can be used for adding, subtracting, multiplying, dividing, order of operations, finding rules, and learning to substitute values.  The spinners can be used with 2 to 12 sections in each spinner.  You can have up to 4 spinners.  It also contains a timer in which you can quickly turn the spinners into fun and visual activities.  Watch the YouTube Video on using the spinners to see how it can be used.

This website gives a great example of using the commutative and associative properties of addition using Skittles.  There is a video available that will help demonstrate successful implementation.