Wednesday: Leech

Mar 27, 2014   //   by Miss Kim   //   Daily Lessons  //  No Comments

Calendar:  Discussed the date in English and Spanish and wrote it in number form. Miss Kim  put the number on the calendar, discussed the weather and found the day of the week in Spanish with help from the children.  We reviewed our colors, shapes, sight words, Spanish, and Sign Language words.  We also reviewed the pattern on the calendar.

Fun Facts/Brainstorming:  We reviewed what they learned about crawfish. Today the children told me all that they know about leeches.  Fun Facts: Leeches are worms that live near water with many teeth for sucking their food.  After they bite and eat, they will fall off on their own. The size of a leech depends on the species.  Some species can reach 16 inches in length.  Most leeches are usually 0.3 to 3 inches long.  Body of leeches are composed of 34 segments. Their body is brown or black in color.  Leeches have suckers on both ends of their body.  Most species have three jaws equipped with small, sharp teeth.  Their teeth are even able to pierce thick skin of a hippo.  Leeches have 32 brains.  Due to similarity with the nervous system of humans, leeches are often used in investigation of brain disorders.  Majority of leeches eat blood.  Certain species of leeches consume decaying plant material or various worms and insects.  

Language and Literacy: Discussed: What words do you know that end with the /og/ sound?  I spread the beginning sound cards on the floor. We discussed what words we could make adding the sound cards to the /og/ sound.  We  used the wipe off board to look at the letters “og”.  Discussed their sound and made lots of words with those letters.  The children read all the words. I wrote a poem with missing letters. The children filled in the words they wanted to make the poem silly.  Poem I wrote: “There once was a ___og, On a __og, In the ___og, Until it saw the ___og, And now it’s gone.

Science: Discussed: What do you think happens when a leech  eats?   When a leech attaches to its host it stays  attached until it is full.  It swells up and then falls off.  I had the children pretend to be leeches.  I had them pretend to blow up and get bigger as they pretend to eat.  When they were “full”  I invited them to fall down to the ground.  We did a science experiment.  We took an empty water bottle and measured out 1/4 cup vinegar and a 1/4 cup water.  We mixed those and poured it in the water bottle.  We then put 1 tablespoon of baking soda into a deflated balloon.  I took the balloon and carefully placed it over the mouth of the water bottle without spilling the baking soda into the vinegar mixture just yet.  The children then predicted what they thought would happen when I held the balloon up to make the baking soda go into the vinegar/water.  I put the balloon up and let the baking soda pour into the vinegar/water solution.  The children all of a sudden saw fizzing and the balloon started to blow up and get big.  They loved this experiment.  We discussed that the mixture of the ingredients caused a gas to release and blow up the balloon. This gas is Carbon dioxide.  We talked about how the leach would look after it ate all its food. It would look like the balloon.

Mathematics and Reasoning:  Discussed: Where do you think leeches like to attach?  Only about 10% of leeches actually have the ability to bite and attach to a living creature.  Most leeches hook onto decomposing items to feed.   We pretended the black piece of paper is a small leech.  I placed one of each matching card face up.  I had all the children hide their eyes as I placed the “leech” under one card.  Then I picked a child to come up and choose the card which the leech was under.  Every child got a turn to find the leach under the animal.  

Physical Development: Discussed: Which letters can you make with your body?  Each child gets I Can Write sheet and I had them name the letters.  We all tried to make one letter with our bodies! I gave each child a piece of yarn and we pretended they were leeches.  The children tried to make letters with the piece of yarn.  Afterwards, they practiced writing the letter on the I can Write Sheet.

Show and Tell: Each child was to bring a word with the /og/ word family.  They came up one at a time to show us their word and read it for us.  They then found the /og/ in the words.

Afternoon Centers:  Center 1:Bowling and waffle blocks Center 2: I Can Write Sheet- The children practiced writing the letters “Kk” “Pp” and “Ff”  and also traced  the pattern lines on the back of the sheet.   


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