## The Hydraulic Crane – a great science project!

I had many requests for a step by step instruction of making the “Hydraulic Crane”.

Although this wasn’t my construction (one of my brilliant students did this one for a project that I assigned), I can figure out the basics from what I saw.

Note: The following is only meant as a start for anyone that wants to try this project. However, everyone has their own twist to every assignment, every design. Use your imagination to make the crane better, and your own!

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## How to help young children learn math – Adding Finger Game

I am working on an adding game for very young kids (2 to 4 year olds). It is based on counting on fingers. Children learn how to add quickly if they start to recognize their hand and finger positions. For instance, children that are good at adding don’t need to count if they see three fingers on one hand, they just know it’s three. Similarly, it is beneficial for a budding child’s faster math skills, for him or her to knows that a full hand of five fingers and the other hand with three is eight, without counting. This game is designed such that the child gets a lot of practice with associating finger positions with the appropriate numbers.

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## Does a bottle filled with water or snow roll down a hill faster?

One jar filled with water, the other filled with snow… which one will roll down faster?

Question: Does a bottle filled with water or snow roll down a hill faster?

Prediction? Take your time. Think about it. Ask your friends, ask your kids, ask your parents.

Make sure to get explanations from yourself and all the people you ask, not just guesses.

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## Fun and Easy Building Activity for Kids – rotational inertia in action!

This “frog” is an excellent building/crafting activity for kids. It takes less than 15 minutes to build and will have your kids playing with it all day! (credit: Lubię majsterkować, by Adam Słodowy). The cool behaviour is due to inertia and the rolling of the ball inside of the contraption.

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