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LESSON PLAN #2: Introduction to Scratch Algorithm with Poems Grade: 4 Subject: Computational Topic: Scratch Algorithms & Thinking/Computer Science Poems w/ Literacy STANDARDS: Literacy: RL.4.1: Refer to details and examples in a text when explaining what the test says explicitly and when drawing inferences from the text. RL.4.7: Make connections between the text of a story or drama and a visual or oral presentation of the text, identifying where each version reflects specific descriptions and directions in the text. W.4.2: Write informative/explanatory texts to examine a topic and convey ideas and information clearly. Computer Science: (According to the CSTA Computer Science Standards grades 3-6) L1.6.2 CT: Develop a simple understanding of an algorithm using computer-free exercises. L1.6.5 CT: Make a list of sub-problems to consider while addressing a larger problem. L2.6.3 CL: Collaborate with peers, experts, and others using collaborative practices such as pair programming, working in project teams, and participating in group active learning activities. L1.6.6 CPP: Implement problem solving solutions using a block-based visual programming language. PRIOR KNOWLEDGE: v Basic understanding of computers and technology’s functions in society v How to write and follow a sequence of instruction (Lesson 1) v Collaboration and teamwork skills v Problem-solving strategies v Ability to read, write, and illustrate LESSON OBJECTIVES & OUTCOMES: v The students will begin to learn some of the basic functions of Scratch including sprites, movement, say functions, sound functions, and hide and show v Using the Scratch function cutouts, the students will write a series of algorithms for the sprites to illustrate the assigned poem v Students will be in groups of 4 where they will collaborate and problem solve together while creating the algorithms for the illustrations v Students will then present their project to another group and the teacher and take a picture of the finished version. Students will write a reflection on how it functions and any challenges they faced PLANNED SEQUENCE: 1. Introduction (10 minutes): v Refer back to lesson #1 and remind students of sequences and their detailed sequences they created v Introduce algorithms by explaining that algorithms can be different, but still produce the same product v Explain how computers read sequences of algorithms and that we will be writing our own algorithms using Scratch function cutouts. This practice will lead into when Scratch is done on the computer in lesson 5 v Show the functions that will be used for the lesson and explain what each function does. For this lesson it will include sprites, flag, move, say, sound, hide, and show v Show an example Scratch on the computer so they see that the pieces resemble those from the actual site v Ask if there are questions 2. Instruction (10 minutes): v -Tell the basic instructions of Scratch: • Each sprite has its own sequence • Each sequence must start with the flag • Fill in the blanks for move, say, etc. v Explain that for this assignment they will be paired into groups of 4 and be assigned a poem. With their group, they must read their poem and come up with a Scratch algorithm that illustrates the poem v Tell students they must create their own sprites and a background based on their poem. They must then use the Scratch cutouts to write a short algorithm telling their poem. The sequence for each sprite should be labeled v Provide an example. “Let’s say my poem is about a dog barking at a cat. I may have a sprite of a tree, a dog, and a cat. I may use the sound function to program a barking noise, use the motion function to have the cat run up the tree, and use the say function to have the cat say meow.” v Tell the students they must use at least one of each function from the introduction and at least three sprites but can use other available functions 3. Work Time (30 minutes): v Group students into groups of 4 v Pass out a poem to each group v Students collaboratively read poems, make inferences about the poem, and visualize a way to represent the poem v Students begin work making sprites, background, and writing algorithms. v Students ask questions when needed and teacher makes clarifications when issues arise v Teacher reminds students to add a sticky note “tweet” to the twitter board if they find a good strategy to share. 4. Share Time & Closure (10 minutes) v Have the students wrap up their projects. v Have groups pair up with one other group and perform their Scratch creation to the other group v Teacher should observe each groups as a formative assessment v Instruct students to write their reflection for homework on how their project functions and what challenges they faced MATERIALS / EQUIPMENT: v Scratch Function Cutouts (Green flag, sprites, movement functions, say function, sound function, hide, show) v Five poems printed (See document “Poems for Lesson 2”) v Document Camera v Sprite Cutouts (Children Create based on poem) v Scissors v Blank Paper for fill in functions v Computer for Teacher to show actual website v Disposable camera GRADING CRITERIA: v This lesson will produce a list of functions for each sprite they have chosen to use to tell the poem v Once the groups have finished their Scratch algorithms for their assigned poem they will practice how it would function and present it to another group v The presentations will be observed by the teacher as a formative means of assessment to gauge where their level of understanding is v The teacher should use this to fill in any misunderstandings in the next lesson v The students will then take a picture of their entire sequence with the disposable camera and write a reflection for homework on how it functioned and what was challenging v The developed picture along with the reflection will be added to their portfolio for the end project.
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