Mathematical abilities are very important in building students' abilities in all aspects. Mathematical abilities are needed not only as numeracy skills but the ability to use mathematical logic in solving problems. Mathematical concepts are needed even for other scientific fields. This algebra concept electronic pocket book was created to help students during basic chemistry learning. The focus of the material chosen in basic chemistry learning is stoichiometry that applies algebraic concepts. This pocket book is useful for streamlining basic chemistry learning, especially on stoichiometry materials that use algebraic concepts in their operations. This algebra concept electronic pocket book has been tested on stoichiometric material. This book was tested on first semester students for basic chemistry courses.The test results on the first semester students showed a significance value of less than 0.05, which indicates that there was a difference in the average between group A and group B

This paper focuses on the conceptualization developing digital literacy skills with laboratory. The learning of the 21st century brings digital literacy oriented to the theory and practice of teachers. This discourse is oriented in digital and teaching laboratory. Teachers resilient come from resilient college education and produce a resilient school. Teachers resilient need a strong school. This paper offers a clear and theoretical-grounded teaching laboratory for effective learning in a digital environment. An integrative framework for digital literacy as a starting point for much-needed teaching laboratory development. The two basic strategies are the first strategy of digital skills in teaching through a laboratory. The second strategy concerning the conceptualization of integrative laboratories can be reduced to tools of materials and work procedures. Discourses concerning tough school teachers, learning styles and multiple intelligences between modern, book-based digital culture and blended learning.