Special topics on rural plants

1. Observe the scene: far-near, feel-calm, and find the rhythm and order.

Compared with invasive plants (with or without natural enemies), the concept of native plants introduces the concept of niche.

Viewpoint: Alien invasive plants should be treated rationally without excessive isolation. Experts say that as long as human beings control it properly, alien species will not do harm to the ecology, and their tenacious vitality is suitable for greening plants in places where local plants cannot grow. The emphasis is on understanding local plants.

Remarks: According to age, children above junior high school will begin to talk about concepts. Children pay attention to metaphor and imagination and don't instill knowledge.

2. Learn three native plants (Phyllostachys pubescens, Luoshen Flower, Elaeagnus mollis, Pueraria lobata) and1-three invasive plants (Dioscorea trilobata, Bidens bipinnata, Pteris Pteris), and those whose flowers and fruits have obvious identification characteristics are preferred.

3. Natural observation notes

1. Know several common ferns in mountainous areas through pictures or specimens: Adiantum, Golden Retriever, Li Bai, Pteris Pteris, Pteris pilosa, Pteris squamosa, Pteris semipinnata, Pteris pentaphylla, Pteris pentaphylla and Pteris munchiensis.

2. Summarize the living fossils of pteridophytes and their reproduction methods.

3. Choose any kind of fern to describe it.

1. 10 different leaf types were collected near the base.

2. Classify leaves and explain the concept of leaf classification.

3. Find more kinds and colors of leaves and use them to make specimens/collages.

1. Gramineous plants: Based on the paddy field, the grass weeds (Setaria viridis, Pennisetum, Hypericum japonicum, Setaria pinnatifida) in the middle were compared and identified, and the relationship between plants (primary, competition, epiphytic, etc.) was analyzed. ) explained.

2. Collect specimens, observe and record the colors and characteristics of plants in the rice field ecosystem (photography/recording).

3. Weave with grass, make garlands, bracelets and other handicrafts, or cooperate to be scarecrows.

1. Appreciation of Autumn Chrysanthemum-Compositae: Based on the firefly restaurant, the characteristics of Compositae plants were briefly explained, and then the Compositae plants were searched in groups.

2. Identify the found compositae plants, consolidate the concept, and expand the knowledge of delayed flowering by artificially changing the lighting conditions.

3. Arrange the flowers with weeds with the collected specimens.

Remarks: each theme can be spread out, the activities with enthusiastic response can be repeated many times, and the final activity link can be flexibly adjusted according to the time.

Other topics have been reserved:

(Zanthoxylum bungeanum, kapok), observe the position of thorns (prickles, branches, etc.). )

-Lianas (golden dragon with five claws, sweet potato with three leaves, white rattan, wooden stick, climbing vine with three leaves, tortoise with golden thread, Ficus pumila, starwort, Parthenocissus tricuspidata, Lingxiao, beans and sweet potato), and learn the strangulation phenomenon of plants.

-Malvaceae plants

(Hibiscus, Hibiscus, Hibiscus, Roselle, Vanilla, Okra) Picture-Field

(Polygonum hydropiper, Polygonum hydropiper, Polygonum hydropiper, Polygonum hydropiper, Polygonum hydropiper)

A collection of Rosaceae plants (Sanhua plum, raspberry, raspberry, plum blossom and peach blossom), suitable for spring.

Strong winds are blowing.

song

Game (Radish Squat)

Garbage cleaning

Plant picking: 5 plants can be picked 1 plant, and invasive plants/native weeds with strong resistance and excellent quantity are preferred.

General Strategy: Finding Similarity and Finding Difference