This product includes letter tiles, work mats, answer recording pages, and answer keys for each week's spelling words in the 2nd Grade Wonders reading series for unit 2. Each student answer recording page contains a QR code which links to an answer key. This will allow them to self-check their work while removing this burden from the teacher. All that is required is a smart device with a QR code reader (there are numerous free QR apps for both android and iPhone). This center is a great way to incorporate place value practice other than during math. This activity will cover both math and reading common core standards.