11 de febrero de 1990: La liberación de Nelson Mandela

Simple text and photographs introduce the concept of symmetry as displayed by familiar creatures and objects.

Born into slavery, Frederick Douglass relied on his own determination and ingenuity to carve a path to freedom. Once free, he dedicated his life to improving the lives of others and fighting for justice and equality. This inspirational Spanish biography uses primary sources to engage students in learning about the fascinating life of Frederick Douglass. Students will build their literacy skills as they are immersed in social studies content. Text features include a glossary and an index to increase comprehension and academic vocabulary.

Introduces readers to amphibians and the concept of classes of animals. Simple text describes the common features and behaviors of amphibians as well as offering many examples of creatures in this group.

Rusbashov, miembro de la vieja guardia bolchevique y héroe de la Revolución Soviética, ha sido encarcelado acusado de traición al gobiernode Moscú. Es incitado a autoinculparse de una serie de delitos y traiciones que no ha cometido, pero termina por confesar a fin de salvar la Revolución. Esta obra cumbre de la literatura política nos ofrece un testimonio excepcional de la angustia que sufrieron cientos de antiguos miembros del Partido que desaparecieron, fueron encarcelados y juzgados o llegaron a autoinmolarse para salvarlo