Download Lesson Observation Proforma - plantreproductionfieldtrip

EDF4402
LESSON PLAN
Name: Yvonne Orlando
School: Portland
Date: 1/09/09
Time: Start: 900 Finish: 9:50
Year Level: Class Year level eg. Yr 11
Learning Area: Biology - Reproduction
50 mins
Room: S2
Lesson Context:
Class Background: Briefly describe the composition and profile of the class. 21 16/F 5/M
Curriculum Links: Describe the lesson Level and its links to either the VEL’s or VCE study guides. VCE Unit 1 Unity and Diversity – Areas of study 2 Functioning
Learning Objectives:
Equipment & Resources:
Organisms
List the learning objectives of the lesson.
By the end of this lesson students should be able to:

Clearly identify the differences between the processes of mitosis and meiosis and link these to sexual and asexual reproduction

Draw and label the female and male parts of flowers

Articulate the key steps of the sexual reproduction in flowering plants and link them to the processes of meiosis and mitosis.
List ALL equipment you will need to conduct the class., meiosis and mitosis pics, Heinemann Biol 1 text, Field trip forms itinerary and learning
materials, 10 different flowers for the class to examine, examples of asexual reproduction in plants ( eg onion weed bulbs with budding, rhyzomes)
Lesson Plan:
Start Time/Duration
What I will be doing
What the students are doing
900 – 5 mins
Settle class & call roll
Students respond and prepare for
lesson
905 – 5 mins
Explanation of what we will do today (write
on board).
1. Recap on the two types of cell division
that form the basis for asexual and
sexual reproduction from last lesson
2. Cover some of the key structures and
processes related to sexual reprod in
flowering plants
3. Discuss the field trip to happen next
double lesson
Recap on the two types of cell division that
form the basis for asexual and sexual
reprod
9:10 – 10 mins
Answer questions
Key Questions
Resources Required
Class roll
What is the main form of cell division
in asexual reprodn?
Can someone describe or draw how
Cell div sheets
White board
1
-Mitosis- DNA replicates /doubles up in
nucleus, nuclear membrane disappears,
chromos line up, split in half and separate
to either end of cell, then cell divides and
nucleus reforms to contain same no. and
replicate
-Meiosis in anim cells- DNA doubles up
(chromotids) , nuclear mem break down,
pairs of chromo separate to diff poles, cells
divides into two ( diploid cells), process
happens again without duplication of chromo
ie chromos split in half - cells split to from
4 cells with half no of chromo ( haploid)
9:20 ( 20)
this occurs?
How many cells result from one cycle
of mitosis?
What are some of the types of
asexual reproduction based on
mitosis?
How many chromosomes
What are some of the forms of
asexual reprod ?
What are some of the ads/dis ads
What is the main cell division process
in sexual reprodn?
Can someone describe or draw how
this occurs?
How many cells result from one cycle
of meiosis?
How many chromosomes in each?
Cover some of the key processes related to sexual reprod in flowering plants:
Flowers – contains reproductive organs plus sepals and petals. Sepals – protect bud, petals – aid pollination ( attract, trap,
direct wind). Inside petals are reprod organs stamens and pistol
Male parts – stamen – filament & anther. Anther contains pollen sacs. Pollen like a box containing 2 or 3 cells. Anther releases
pollen. Anther site of meiosis
Female parts – pistol – stigma, style and ovary. Stigma catches pollen, style pathway to ovary. Ovary contain an ovule. In ovule
is an egg formed by meiosis
Pollinations and fertilisation – pollen grains land on stigma and begins to grow. One cell of pollen grain produces a tube that
breaks thru the stigma and then grows down carrying sperm with it down to the ovary and ovule. Fertilisation – egg and one
sperm fuse in ovule. Self pollination and pollination from other species prevented by specific chemical recognition mechanisms.
Other cells in ovule combine with sperm to produce endosperm – nutrients for embryo
Seeds and fruit – fert – ovule develops into a seed protected by a tough outer seed coat. The embryo within seed develops
seed leaves (cotyledons 1 or 2) and a root tip. As the ovule begins to develop into a seed the ovary becomes a mature fruit.
Seeds or seed leaves store food for later development (nutritious to humans!). Fruit protects the seed and can enhance
dispersal via animals or wind
Workbooks
Whiteboard/pens
Flowers
Plants with bulbs/
ryzomes
2
9:40 (10 )
1.
2.
3.
Handout instructions and forms for
field trip
Explain the aims and tasks to be
completed on field trip
Run through logistics and
equipment required
Noting information in their daily
planners
Placing handouts in their
workbooks/folders
Any questions?
Is everyone clear about when and
where to meet?
Map
Itinerary
Instructions/ field trip
tasks
Forms
9:50 bell
3