![]() ![]() Let students explore new designs for a pull machine. It does not greatly increase the strength of the movement. The Pull-robot that students are working with uses a bevel gear mechanism to change the direction of the motor rotation. Keep in mind that these tasks extend upon those in the “Investigate” section and are designed for older or more advanced students. Use the “Investigate more” section of the student project as an optional extension. Investigate more (optional, 45-60 minutes) This final step will depend on the friction of the surface the students are working on. Find the heaviest object you can pull with your model when fitted with the tires. This evidence supports the idea that when the pull force is greater than the forces opposing it, objects should move.ģ. The system will suddenly become unbalanced. This will cause the friction among the wheels and the surface to be greater on the Pull-robot side, increasing the force pulling in that direction. Students will put tires on the Pull-robot. Using the same amount of bricks, put the big tires on the model and test what happens. They will increase the friction on the basket side.Ģ. You can also use the small tires as objects to place in the basket. You can use an arrow to symbolize the direction of the force. At that point, students have balanced forces in front of them. Students can use any object, but each one should not be too heavy, as the goal of this part is to reach equilibrium. (300 g) on a regular surface to stop the Pull-robot from moving. Investigate by adding small objects and then heavy objects to the basket until the device stops moving. Using this model, students should be able to conduct an investigation about pull forces.ġ. Have your students collect their answers with text or pictures in the Documentation tool. Unbalanced forces can cause a change in an object’s motion (speeding up, slowing down, etc.) Can you infer the relationship among balanced forces and the objects’ ability to move?.This means that at this point, your students’ answers can be incorrect.įollowing the lesson, students should be able to discuss the fact that the motion of the object will be in the direction of the greatest push or pull force. This answer should be based upon students’ predictions in the beginning. Predict what will happen if the pull force is greater in one direction than the other.It is easier to move an object on a slippery surface than on a rough one.ĭepending on the mass of an object, it can also be more difficult to move the object on a slippery surface because there is less grip to push or pull. Can you explain friction? Is it easier to pull something on a normal surface than on a slippery one?.To make it move, pull or push it, or, more generally, apply a force to it. What are some ways you can make an object move?.The physical boxes differentiate SPIKE Essential by including more elements and more intelligent hardware components as well as a rechargeable battery that does not need to be purchased separately like it was for WeDo. WeDo 2.0 had a key focus on Science curriculum (physical and life science and engineering) whereas SPIKE Essential has a true cross-curricular STEAM approach with purposeful integration of literacy, math and social emotional learning. WeDo 2.0 had a main target of 2nd-4th grade curriculum standards whereas SPIKE Essential has a broader target of 1st-5th grade curriculum standards. Key differences between SPIKE Essential and WeDo 2.0 This gives a seamless learning experience together with other solutions in the learning system and drives deeper learning. ![]() SPIKE Essential also differs from WeDo by being an integrated solution in the new LEGO Learning System. The included rechargeable battery removes handling of separate batteries or the extra purchase of the WeDo rechargeable battery. From a classroom management perspective SPIKE Essential has been optimized with color sorting that keeps cleanup time to a minimum. SPIKE Essential is a comprehensive STEAM solution designed to develop a full range of STEAM skills with stronger coverage all the way from 1st-5th grade. Improved experience with SPIKE Essential in key areas With the introduction of SPIKE Essential, we have retired WeDo 2.0 This new solution, SPIKE Essential, will be part of the LEGO Learning System. Taking key learnings from the WeDo 2.0 experience and marrying those with the needs of today’s education system, LEGO Education have introduced a new solution for the primary grades. SPIKE Essential for primary schools is based on learnings and improvements from WeDo 2.0 If you’re an existing WeDo user looking for materials, please visit our WeDo 2.0 resources page. Based on customer insights and learnings, we have launched SPIKE ™ Essential. ![]()
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