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Transcript
Cells Grade: 5 Description: This lesson set covers cells. It goes along with Harcourt’s Georgia Edition Fifth Grade Science book. It may take several days to cover the material. This lesson set provides the material the student’s need to learn. There are optional worksheets and a fun assessment at the end! Objectives: 1.) Learn what cells are 2.) Learn how cells are organized 3.) Learn the organelles 4.) Be able to distinguish between plant and animal cells 5.) What cells do 6.) Understand that they are made of cells 7.) Learn the keywords 8.) Have FUN while learning 9.) Pass assessment Lesson Plan: Day 1: Introduce the material a.) History of cells b.) Define structure of cells c.) Point out the differences between plant and animal cells Day 2: Reinforce Information Show how cells relate to people a.) All living things are made up of cells b.) Cells are the smallest basic unit of life c.) Cell to system d.) Diffusion and Osmosis *There are activity sheets to assess the student’s knowledge Day 3: Assessment The student’s get to make either a plant or animal cell that they can EAT! Day 1 Keywords: Cell Cell Wall Cell Membrane Nucleus Cytoplasm Chloroplast Mitochondria Vacuole History: 1665 – Hooke observed a thin slice of cork through a microscope 1838 – Schleiden determined every plant is made up of cells 1839 – Schwann concluded that all animals are made up of cells Cell – the basic unit fo structure and function of all living things Types of Cells: *These images can be drawn on the board. Plant Cell Animal Cell Parts of the cell: Plant Cell Nucleus Chromosome Cell Membrane Cell Wall Cytoplasm Chloroplast Vacuole Mitochondria Animal Cell Nucleus Chromosome Cell Membrane Cytoplasm Vacuole Mitochondria Day 2 - Worksheets Keywords: Cell Organ Tissue System Osmosis Diffusion Review the parts of the cell. *The students need to be able to distinguish between mitochondria and vacuole. Introduce new material: Diffusion – particles move from an area of high concentration to an area of low concentration Osmosis – the movement of water and dissolved materials through cell membranes Cell -> System Similar cells make up tissue. Organs are made up of different tissues. Organs work together to form organ systems. Cell -> Tissue -> Organ -> System *Make sure the students understand that the system is made of cells! Four types of tissue in humans 1.) Muscle 2.) Nervous 3.) Connective 4.) Epithelial Activity sheets are attached. Cells All living things are made up of cells. Let’s do some activities to see how much you know about cells. Match the scientist with his discovery. Determined that every plant is made of cells Observed a thin slice of cork through a microscope Concluded that animals are made up of cells Hooke Schwann Schleiden Check all that apply. Plant Cell Animal Cell Nucleus Chromosome Cell Membrane Cell Wall Cytoplasm Chloroplast Vacuole Mitochondria Which is an example of a tissue? heart nucleus mitochondria muscle What are the 4 types of tissues that are in the human body? _______________________________ _______________________________ _______________________________ _______________________________ Number 1-4 from smallest to largest organization. ____ Tissue ____ System ____ Cell ____ Organ Cells 1 3 1 4 5 2 3 2 4 5 7 6 8 Down 1.) Cells get most of their water by __________. 2.) Tissues work together to form an ________. 3.) Cells that work together to perform a specific function form a _________. 4.) Organs that work together to perform a function form a _________. 5.) The rigid layer that supports and protects the plant cell is called the cell _________. Across 1.) What organelle makes food for plant cells? 2.) Every cell is enclosed by a thin covering called the cell _________. 3.) _________is a jelleylike substance containing many chemicals to keep the cell functioning. 4.) You would find a cell wall and chloroplast in a _________cell. 5.) A _________is the basic unit of structure and function of all living things. 6.) Which organelle determines all the cells activities? 7.) Many materials move in and out of cells by _________. 8.) You will not find a cell wall and chloroplast in an _________ cell. Day 3 - Activity Edible Cells Assessment: This activity accesses the student’s understanding of the differences between plant and animal cells. It is an excellent alternative to a formal written test because it is FUN! Materials Needed: Paper Towels Sugar Cookies White Icing (Cytoplasm) Plastic knives Pull n’ Peel Twizzlers (Cell Wall) Mini Reeses Cups (Nucleus) Green Mike and Ikes (Chloroplast) Red Mike and Ikes (Mitochondria) Yellow Mike and Ikes (Animal Vacuole) Circus Peanuts (Plant Vacuole) *For the cell membrane, I had them spread the icing on the cookie but leave a thin line all the way around to represent the cell membrane! Instructions: 1.) Setup a.) List what each item represents on the board b.) Prepare a bowl of each organelle 2.) Provide instructions a.) Assign animal or plant to each student b.) Tell students what each item represents (including the cell membrane) c.) They are to pick out their own materials d.) They are not to talk to one another during this activity e.) Once they are done they are to raise their hands until the teacher can check their work 3.) Pass out materials a.) Paper towels b.) Sugar cookie c.) Knife with icing 4.) Let students select their own materials a.) Send them to the materials table in groups of 3-4 5.) Check their work a.) If they do not have it right give them two chances to correct it b.) When they have it right they can eat their EDIBLE CELL! HAVE FUN! Animal Cell Plant Cell