Big Idea 16 Heredity and Reproduction. Benchmark SC.4.L.16.1 Sexual Reproduction in Flowering Plants Pacing Guide Quarter 3: 02/24-03/07 Benchmark SC.4.L.16.4 Stages & Life Cycles of Florida Plants and Animals Pacing Guide Quarter 3: 03/10-03/20.
Heredity and Reproduction
Sexual Reproduction in Flowering Plants
Quarter 3: 02/24-03/07
Stages & Life Cycles of Florida Plants and Animals
Quarter 3: 03/10-03/20
Mary Tweedy, Curriculum Support Specialist
Keisha Kidd, Curriculum Support Specialist
Millard Lightburn, District Supervisor
Department of Mathematics and Science
Office of Academics and Transformation
Materials: A partner, plastic knife, hand lens,
paper towel, wild flower (weed)
Observe and identify flower parts.
Reconstruct a flower model.
Recognize the function of a flower,
identifying the processes of reproduction
including pollination, fertilization, seed
dispersal, and germination.
Pollen grains (sperm cells) grow in the anther.
This holds the anther.
Why Do Plants Make Flowers?
Stories Must Include:
Writing Assessment Rubric:
Pollination is the act of transferring pollen grains from the male anther of the stamen to the female stigma.
Birth to Death
1. They are born (egg or embryo).
2. They grow (infant).
3. They develop into adults (adolescent).
4. Adults can reproduce (adult stages).
(butterflies and moths)
b. Larva (caterpillar)
Three main parts:
1. seed coat - a covering with two roles:
- Protects new plant called embyro
- Guards stored food called endosperm.
2. endosperm – stored food
3. embryo – The new plant with structures called seed leaves or cotyledons.
1st Lets make Dry Seed
2nd Let’s explore …
What do seeds need to sprout?
What are the variables that affect germination?
Test your ideas on the Gizmo: Germination.
What did we learn?
Holds seeds inside of the flower which lie dormant, waiting to be planted in the ground.
Seeds are made in their cone or spores instead of the flower.
When the small plant inside begins to grow, the seed germinates.
The young plant that grows from a seed is the seedling.
Seeds are scattered by planting, wind, water, and animals.
food, water and air
2. Can you name the parts of a plant?
roots, stem, leaves and flower
3. What do plants need to grow?
sunlight, air, water and nutrients
or minerals from the soil
The roots hold a plant in place and takes in water and nutrients from the soil.
5. What does the stem do for a plant?
The stem holds up the plant and moves water and nutrients through it.
Leaves use sunlight, air, water, and nutrients to make food for the plant.
7. What do flowers do for plants?
Flowers make fruits that hold seeds. These seeds will make new plants.
8. How can seeds be scattered?
By planting, animals, water, and wind.