Desafíos matemáticos

El librero es un hermano vocacional del cantinero y acaso también del farmacéutico. Más allá de las sutiles diferencias entre despachar licores, medicinas o libros, los tres acaban fungiendo como consejeros espirituales, vertederos de confesiones y testigos de las más extrañas conductas. A su manera, ejercen una suerte de pagano sacerdocio. Literatos consagrados que llegan de incógnito a preguntar si se venden sus libros; ilusos neófitos que esperan ver su poemario autoeditado convertido de la noche a la mañana en bestseller; compulsivos ligadores otoñales y casanovas buscando...

Lincoln Rhyme and Amelia Sachs return to face a criminal whose ingenious staging of crimes is enabled by a terrifying access to information. When Lincoln's estranged cousin is arrested on murder charges, the case is closed. Forensic evidence from Arthur's home is found all over the scene of the crime, and it looks like the fate of Lincoln's relative is sealed.

This book uses intriguing primary sources to introduce students to the life of George Washington. The detailed, authentic images and simple, repetitive phrases will engage students in reading and build their social studies content knowledge. For use in the classroom or at home, this Spanish book includes a simple glossary and index to introduce informational text features to young readers and provide additional reading support.

A 2014 report by the US Department of Education found that 22 percent of students ages twelve to eighteen had experienced bullying. This cogent narrative provides readers with supportive methods to help a friend who is being bullied and to promote a bully-free learning environment at school. Physical, social, psychological, and verbal bullying are examined, as well as cyberbulling. Readers discover the consequences of bullying both as a target and as a bystander. They also consider ways to intervene in a bullying situation, how to seek adult help, and how to be empowered and recover from...