wheel axle lever (noun) (noun) (noun)

Transcription

1 WORDS IN CONTEXT DAY 1 (Page 1 of 3) wheel axle A wheel is a round object under a vehicle that allows it to move smoothly. Most vehicles have more than one wheel. The wheel is one of the most important inventions. An axle is a fixed point or bar around which a wheel turns. When the axle on the wagon broke, the pioneers were stuck. An axle can hold one wheel or several wheels. lever A lever is a simple machine made up of a bar that pivots, or turns, on a fixed point called a fulcrum. A seesaw is an example of a lever. A lever changes both the size and the direction of a force.

2 WORDS IN CONTEXT DAY 1 (Page 2 of 3) inclined plane An inclined plane is a type of simple machine with a slanted surface. A ramp is a common inclined plane. The movers used an inclined plane to load the boxes into the moving van. pulley A pulley is made up of a wheel that holds a rope, chain, or cable. A pulley is a simple machine that changes the direction of a force. Using more than one pulley reduces the force needed to lift a load. screw A screw is a pin-shaped fastener with a groove or thread around it. A screw is actually an inclined plane wrapped around a shaft. A bolt is a type of screw with a flat end.

3 WORDS IN CONTEXT DAY 1 (Page 3 of 3) wedge A wedge is a simple machine used to separate objects. An axe and a front tooth are each an example of a wedge. A wedge is two inclined planes that meet. simple machine A simple machine is any basic mechanical device that works with the application of a single force. A lever, pulley, inclined plane, wheel and axle, wedge, gear, and screw are each an example of a simple machine. The opposite of a simple machine is a compound, or complex, machine. simple (adjective) A simple solution to a problem is one that does not require much thought. She wore a simple, or plain, black dress to the party. Some people find computers very difficult, not simple, to learn to use.

4 WORD SMART DAY 1 (Page 1 of 1) INSTRUCTIONS: Have students write a word in each box and then draw a picture that defines it. Word: Draw: Word: Draw: Word: Draw: Word: Draw:

5 wheel a round object that turns around a central point axle a bar around which a wheel or wheels revolves lever a simple machine with a rigid bar that pivots around a fulcrum

6 inclined plane a slanted surface that makes it easier to move an object between a lower level and a higher level; a type of simple machine pulley a circular lever, usually a wheel with a rope around it; a type of simple machine screw an inclined plane wrapped around a rod, often used to hold things together; a type of simple machine

7 wedge a simple machine with one narrow or pointed end and one wide end; used to separate two objects or parts simple machine any basic device that works with the use of a single force simple not hard, complicated, or fancy (adjective)

8 ANALOGIES DAY 2 (Page 1 of 3) An analogy shows a relationship between two sets of words. The words in the first pair must have the same relationship as the words in the second pair. To complete an analogy with a missing word, you must first discover the relationship between the completed pair. (Example: Cat is to meow as dog is to bark.) square ramp seesaw complex machine smooth join bicycle hardest turning INSTRUCTIONS: Have students determine the relationship between the first pair of words. Then have them use the words in the word box to complete the second pair of words. Pulley is to simple machine...as... can opener is to Wedge is to separate...as... clamp is to Wheel is to round...as... box is to

9 ANALOGIES DAY 2 (Page 2 of 3) An analogy shows a relationship between two sets of words. The words in the first pair must have the same relationship as the words in the second pair. To complete an analogy with a missing word, you must first discover the relationship between the completed pair. (Example: Cat is to meow as dog is to bark.) square ramp seesaw complex machine smooth join bicycle hardest turning INSTRUCTIONS: Have students determine the relationship between the first pair of words. Then have them use the words in the word box to complete the second pair of words. 4. Screw is to grooved...as... nail is to 5. Lever is to seesaw...as... inclined plane is to 6. Simple is to simplest...as... hard is to

10 ANALOGIES DAY 2 (Page 3 of 3) An analogy shows a relationship between two sets of words. The words in the first pair must have the same relationship as the words in the second pair. To complete an analogy with a missing word, you must first discover the relationship between the completed pair. (Example: Cat is to meow as dog is to bark.) square ramp seesaw complex machine smooth join bicycle hardest turning INSTRUCTIONS: Have students determine the relationship between the first pair of words. Then have them use the words in the word box to complete the second pair of words. 7. Axle is to fixed...as... wheel is to 8. Inclined plane is to ramp...as... lever is to 9. Simple machine is to lever...as... compound machine is to

11 CLOZE SENTENCES DAY 2 (Page 1 of 2) wheel lever inclined plane pulley screw wedge simple machine simple axle INSTRUCTIONS: Have students use the vocabulary words in the word box above to complete the sentences below. A seesaw is an example of a A lever and a pulley are each a type of A wheel, or wheels, turns around an 4. A end. has one narrow end and one wide 5. The bike's front is flat.

12 CLOZE SENTENCES DAY 2 (Page 2 of 2) wheel lever inclined plane pulley screw wedge simple machine simple axle INSTRUCTIONS: Have students use the vocabulary words in the word box above to complete the sentences below. 6. A hold things together. is a simple machine that is used to A flagpole contains a helps raise the flag. Compared to a flute, a harmonica is to learn to play. that 9. An move loads from a lower point to a higher point. makes it easier to

13 INSTRUCTIONS: Assign one or more of the following activities to reinforce the function of nouns. EXPLORATION DAY 3 NOUNS Draw a Picture Materials: Word cards; box or envelope; paper; pencils, markers, or crayons Place all the word cards in a box or envelope. Have students pull out a word card and draw a picture of the chosen word. Encourage them to draw a picture that illustrates the word s meaning. Make a Picture Dictionary Materials: Paper; pencils, markers, or crayons Have students create a picture dictionary for the word list by writing their own definitions and drawing their own illustrations in their book. Make a Sentence Materials: Word cards, box or envelope, strips of paper Place all the word cards in a box or envelope. Have students pull out a word card and use their chosen word to create a written or oral sentence. Match a Word Materials: Word cards, tape, box or envelope Place all the word cards in a box or envelope. Have students pull out a word card and tape it onto an object in the classroom using the word as a label. Mime It! Materials: Word cards, box or envelope Place all the word cards in a box or envelope. Have students pull out a word card and act it out. Have classmates try to guess the word. Pick a Synonym or Antonym Materials: Word cards Place all the word cards in a box or envelope. Have students pull out a word card and give a synonym or an antonym for the chosen word. (You may choose to omit words that do not have synonyms or antonyms, or you may choose to include them as points of discussion.)

14 CONCEPT COMPLETION DAY 4 (Page 1 of 2) INSTRUCTIONS: Have students use what they know about the vocabulary words to complete the following sentences. A lever might be used for One example of a simple machine is The axle of a car is found 4. A screw is made up of 5. One thing that is simple to operate is 6. A wedge is used to 7. You can see a wheel on a 8. An example of an inclined plane is

15 CONCEPT COMPLETION DAY 4 (Page 2 of 2) INSTRUCTIONS: Have students use what they know about the vocabulary words to complete the following sentences. 9. A pulley can be used to

16 ASSESSMENT DAY 5 (Page 1 of 2) INSTRUCTIONS: Have students choose the best answer to complete each statement. A does not have a wheel. bicycle horse car An axle usually looks like a ramp or slide circle or sphere pole or bar A is an example of an inclined plane. seesaw flagpole ramp A pulley contains a bar an inclined plane a rope A lever changes the of a force. size size and direction direction 6. A screw is used to materials. break separate fasten

17 ASSESSMENT DAY 5 (Page 2 of 2) INSTRUCTIONS: Have students choose the best answer to complete each statement A wedge has a bar and a lever narrow end and wide end wheel and a rope A simple machine works with the application of a coat of paint several different forces a single force 9. Which one has a simple solution? how to build a house how to drink water how to travel to Italy for a month