Past Tense

Past Tense
Daily Grammar Sentences
Instructions:  Give the student the sentences in the second column (Sentences to be Corrected).  Students write corrected sentences and turn them in to the teacher to be checked.
Theme:
Science
Sentences to be Corrected
Corrected Sentences
Monday
Yesterday we observe our plants. 
My plant no grow. 
You did used a magnifying glass?
Yesterday we observed our plants.
My plant did not grow. 
Did you use a magnifying glass?
Tuesday
Last week the class does a experiment carefully.
The teacher not works quickly.
You write the information your journal? 
Last week the class did an experiment carefully.
The teacher did not work quickly.
Did you write the information in your journal?
Wednesday
How you studied about the pond last year?
I seed a bug with a microscope.
They not knowed about such small things.
How did you study about the pond last year?
I saw a bug with a microscope.
They did not know about such small things.
Thursday
The class make a hypothesis. 
Do you predict the answer? 
I no guess correctly
The class made a hypothesis.
Did you predict the answer?
I did not guess correctly.
Friday
What you learned in science today?
I no give up.
My team measure with a scale, a ruler and a thermometer.
What did you learn in science today?
I did not give up.
My team measured with a scale, a ruler and a thermometer.
Assessment can be made on three levels in Daily Grammar Sentences:
        1. Did the student recognize the mistake?
        2. Can they fix it?
        3. Can they produce a sentence using that grammar point in free speech?


Activity

Mad Scientist?
Type of Activity:  Independent, though teacher will want to monitor the experiment portion, especially with the baking soda and vinegar
Materials Needed:  Old newspaper, vinegar, water, corn starch, baking soda, cups for mixing, spoons to stir, paper, pencil
Directions for student:

Your job is to create an experiment using these four things.  When you mix two of these things, you will get a reaction.  When you mix two other things, you will get another reaction.  Do you know which sets of things will make a reaction?  Do you have a hypothesis about what the reaction will be?

Write up the problem of this experiment:  What will happen when you mix some of these things together?
Next, make a hypothesis about what you think will happen.
After that, spread out newspapers so you have a place to work.  Mix two items in a cup and see what happens.  Draw a picture of you’re your cup now looks like.  Make sure you tell in your picture what two things were in your cup.  Then, mix another two items in another cup and draw a new picture of the results.  Keep doing this until you have tried mixing all combinations.  Is there anything else you would like to try?

Now, write up what you did in this experiment and what you found out.

Assessment:   Through written work, based on the quality of sentences produced.



Grammar Explanation
Past tenses of verbs, like plural nouns are often determined by certain historical factors and therefore seem somewhat arbitrary.
The -ed ending has three pronunciations:
kick- kicked /t/ - when the final sound of the singular is also voiceless (except /t/)
study- studied /d/ - when the final sound of the singular is voiced (except /d/)
count - counted /id/ - short i plus d - when the final sound is /t/ or /d/)
Irregular verbs come in a wide variety of types, including those that do not change (hit - hit, shut - shut)
Note that auxiliaries also have past tenses:  have - had, can - could, and most importantly:  do - did

Be careful with verbs that “double a letter” or “change the y to i” before adding the ed ending:
Mom shopped yesterday.  He studied his flashcards

Negation involves the introduction of the auxiliary did:
He didn't read the newspaper last night.
We didn't make breakfast yesterday.
Questions
Yes/No questions
These are formed by putting the auxiliary verb did at the beginning of the sentence.
Did you go to the store on Sunday?
Did she play basketball with them?
5Ws
Question words are placed at the beginning, before the auxiliary.  Note that, as in a yes/no question, the auxiliary is before the rest of the sentence.
What did she do after school?  She listened to the radio.

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