This week we are going to jump right into cycles. Cycles are also an important unit, because they are part of our TEKS. Here Students know that some change occurs in cycles. The student is expected to describe and compare life cycles of plants and animals.
To begin our unit on life cycles I have ask each student to write down what they already know about life cycles.
The first life cycle we are going to research is the life cycle of the ladybug. Everyone knows what a ladybug looks like, but how many know their life cycle. To began with I am asking students to go to the web link I have provided on Ladybugs and fill out the activity A ladybug's life. This is a fun activity because it gives the students a chance to write a fun story about ladybugs.
The life cycle of the ladybug is similar to that of the butterfly. I chose the ladybug because it was a different insect and students need to know that several insects have the same type of life cycle. The ladybug Lay's eggs, then the eggs hatch in two to five days into a larva. The larva stage last for 21 days. Like the Caterpillar the larvae forms a pupa were metamorphosis takes place. Then after 7 days an adult ladybug appears.
The next life cycle we will learn about is a plant. The life cycle of the plant is a little more complex. First we will learn about the seed and germination. How it grows and becomes a plant. To begin with click on the link Life Cycle and see how plant grow and germinate. Next check out the fun activity called the Great Plant Escape. On this web activity you will help detective leplant and his partners Bud and Sprout unlock the amazing mysteries of plant life.
The final life cycle we will cover this week is that of the Frog. Frogs also go through metamorphosis. The difference in the frog and the ladybug is the frog spends his time in the water while going through metamorphosis. Frogs lay their eggs in the water or other wet places. The eggs are together in a floating mass called a egg spawn. The eggs develop into a tadpole. The tadpole spends his time in the water much like a fish. Metamorphosis begins to take place in the water. The Tadpole starts developing legs and lungs preparing him for a life out of the water. when the tadpole has completely gone through metamorphosis he will emerge from the water and live on land. Click here to see the life cycle of the Frog.
That's all we are covering this week have fun and enjoy the activities provided.
Ms. Singleton
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