# Use blocks from the various palettes to instruct the Logo turtle to replicate the pattern.
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Please refer to the [[Activities/TurtleArt]] pages for basic instructions on how to use the block interface and the details of various toolbars.
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The shape challenges are loaded from the Combo Box on the Project (Palette) toolbar. When you select a shape, it will be loaded onto the canvas. When you use the Erase button, the current shape is reloaded.
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The available blocks are small subset of the Turtle Block blocks: the basic turtle blocks; a reduced palette of pen and color blocks; some basic arithmetic operators; the repeat block; and the action and box blocks.
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The Export palette includes save as Logo; save as image; and save as Turtle Art.