| Reese at the Stream |
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| Reptadores furtivos (Slinky Sliders): Serpiente de cascabel (Rattlesnake) |
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1.3 |
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| Researching with Online Videos |
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| Reshma Saujani |
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1.7 |
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| Respect |
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3.4 |
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| Respecting Others Online |
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| Responsibility |
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3.3 |
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| Rettie and the Ragamuffin Parade |
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4.3 |
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| Review It! Helping Peers Create Their Best Work |
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4.1 |
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| Riding to Washington |
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3.8 |
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| R is for Race: A Stock Car Alphabet |
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6.3 |
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| R is for Rhode Island Red: A Rhode Island Alphabet |
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7.2 |
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| R is for Rhyme: A Poetry Alphabet |
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5.8 |
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| River |
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| Road Roller |
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1.6 |
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| Robert Fulton |
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1.6 |
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| Robin |
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| Rock and Vole |
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| Rollin' on Down the Line: Lady Bird Johnson's 1964 Whistle-Stop Tour for Civil Rights |
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| Roll the Dice |
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