1) Scatter 10 - 15 vocabulary words all over the board. Call on students to come up one by one to circle two words and make a sentence using both.
2) Write some key vocabulary words on the board. Read out each word and give a definition. Then ask some of your students in the class interesting questions using the new words.
3) Prepare 10 - 15 vocabulary words along with sentences that explain the words clearly. Read out the words and the sentences as a dictation, and tell the students they only have to write down the word, not the sentence.
4) Make a list of 10 - 12 key words from your text, including some new ones, as well as some that your students already know. Tell your students you are going to call out the words as fast as possible, and they must write down all the words they hear. Read the words out super fast, and do it a second time ONLY if they really insist. Then invite a student to come to the board and write the words on the board as other students call them out. When the students finish, then you can add any words they didn't get and correct spelling. Ask students if they have any questions about the words.
5) This one takes longer than some of the other activities, but the students really enjoy it. Assign 5 or 6 students to stand at the board, pens/chalk in hand, ready to write words as you call them out. Call out 12 - 15 key words, and have them write the words all over the board, as creatively as possible. Each time they write a word, make sure that they move to a new place, and change their writing style often. When the dictation is finished, you should have a board covered with words. Now ask the class if they see any interesting combinations of words on the board. Next, tell them they have 3 minutes to make as many sentences as they can using the words. Finally, ask a few to read out their sentences.
6) Write about 10 - 15 key words on the left side of the board. Get your students to give you some vocabulary related to water (ice, drip, puddle, wet, rain, etc.). You write these words on the right side of the board. Now, you assign them to make sentences establishing a connection between words from your list and the "water" words.
7) This next one is a fun way to get students pronouncing the new words.

8. Put a list of new vocabulary on the board. Explain the meaning of the first word, then give the students a couple of minutes to write a short sentence about themselves using the new word. Continue with all of the words. When you are finished with the list, encourage a few students to read out a sample sentence or two.
9) Before handing out the text, put 6 or 7 important words from the text up on the board. Make sure that they are not grammar words (the, and, what), but also make sure that they don't give away the subject of the text too easily. Ask your students to guess what the text is about. When they have made a few guesses, tell them and hand out the text.
10) Put a list of 10 or so important words from your text on the board. Then give each student an equivalent number of post-it notes. Tell the students to write down each word on a separate post-it note. Then have them put the words anywhere in the classroom (on desks, tables, windows, classmates, you) that they think is appropriate. Encourage them to ask their neighbors why they put the words where they did.
Do you have any other ideas for introducing new vocabulary? If so, post it here so we can all learn from each other.
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