Answer the question at the end by quoting:

Ivor Armstrong Richards (26 February 1893 - 7 September 1979), known as I. A. Richards, was an English educator, literary critic, and rhetorician whose work contributed to the foundations of the New Criticism, a formalist movement in literary theory, which emphasized the close reading of a literary text, especially poetry, in an effort to discover how a work of literature functions as a self-contained, self-referential aesthetic object. Richards' intellectual contributions to the establishment of the literary methodology of the New Criticism are presented in the books The Meaning of Meaning: A Study of the Influence of Language upon Thought and of the Science of Symbolism (1923), by C. K. Ogden and I. A. Richards, Principles of Literary Criticism (1926), Practical Criticism (1929), and The Philosophy of Rhetoric (1936).
The life and intellectual influence of I. A. Richards approximately corresponds to his intellectual interests; many endeavours were in collaboration with the linguist, philosopher, and writer Charles Kay Ogden (C.K. Ogden), notably in four books: I. Foundations of Aesthetics (1922) presents the principles of aesthetic reception, the bases of the literary theory of "harmony"; aesthetic understanding derives from the balance of competing psychological impulses. The structure of the Foundations of Aesthetics--a survey of the competing definitions of the term aesthetic--prefigures the multiple-definitions work in the books Basic Rules of Reason (1933), Mencius on the Mind: Experiments in Multiple Definition (1932), and Coleridge on Imagination (1934) II. The Meaning of Meaning: A Study of the Influence of Language upon Thought and of the Science of Symbolism (1923) presents the triadic theory of semiotics that depends upon psychological theory, and so anticipates the importance of psychology in the exercise of literary criticism. Semioticians, such as Umberto Eco, acknowledged that the methodology of the triadic theory of semiotics improved upon the methodology of the dyadic theory of semiotics presented by Ferdinand de Saussure (1857-1913). III. Basic English: A General Introduction with Rules and Grammar (1930) and IV. the Times of India Guide to Basic English (1938) developed the Basic English program in effort to develop an international language, an interlanguage based upon a vocabulary of 850 English words. Richards' travels, especially in China, effectively situated him as the advocate for an international program, such as Basic English. Moreover, at Harvard University, to his international pedagogy, the instructor I. A. Richards began to integrate the available new media for mass communications, especially television.

what made him collaborate with ogden?

Answer the question at the end by quoting:

Adeline Virginia Woolf (; nee Stephen; 25 January 1882 - 28 March 1941) was an English writer who is considered one of the most important modernist twentieth century authors and a pioneer in the use of stream of consciousness as a narrative device. Virginia Stephen was born into an affluent household in South Kensington, London. She was the seventh child in a blended family of eight. Her mother, Julia Stephen, celebrated as a Pre-Raphaelite artist's model, had three children from her first marriage, her father Leslie Stephen, a notable man of letters, had one previous daughter, and four children were born in her parents' second marriage, of whom the most well known was the modernist painter, Vanessa Stephen (later Vanessa Bell).
Julia Stephen fell ill with influenza in February 1895, and never properly recovered, dying on 5 May, when Virginia was only 13. This was a pivotal moment in her life and the beginning of her struggles with mental illness. Essentially, her life had fallen apart. The Duckworths were travelling abroad at the time of their mother's death, and Stella returned immediately to take charge and assume her role. That summer, rather than return to the memories of St Ives, the Stephens went to Freshwater, Isle of Wight, where a number of their mother's family lived. It was there that Virginia had the first of her many nervous breakdowns, and Vanessa was forced to assume some of her mother's role in caring for Virginia's mental state. Stella became engaged to Jack Hills the following year and they were married on 10 April 1897, making Virginia even more dependent on her older sister. George Duckworth also assumed some of their mother's role, taking upon himself the task of bringing them out into society. First Vanessa, then Virginia, in both cases an equal disaster, for it was not a rite of passage which resonated with either girl and attracted a scathing critique by Virgina regarding the conventional expectations of young upper class women "Society in those days was a perfectly competent, perfectly complacent, ruthless machine. A girl had no chance against its fangs. No other desires - say to paint, or to write - could be taken seriously". Rather her priorities were to escape from the Victorian conventionality of the downstairs drawing room to a "room of one's own" to pursue her writing aspirations. She would revisit this criticism in her depiction of Mrs Ramsay stating the duties of a Victorian mother in To the Lighthouse "an unmarried woman has missed the best of life". The death of Stella Duckworth, her pregnant surrogate mother, on 19 July 1897, after a long illness, was a further blow to Virginia's sense of self, and the family dynamics. Woolf described the period following the death of both her mother and Stella as "1897-1904 -- the seven unhappy years", referring to "the lash of a random unheeding flail that pointlessly and brutally killed the two people who should, normally and naturally, have made those years, not perhaps happy but normal and natural". In April 1902 their father became ill, and although he underwent surgery later that year he never fully recovered, dying on 22 February 1904. Virginia's father's death precipitated a further breakdown. Later, Virginia would describe this time as one in which she was dealt successive blows as a "broken chrysalis" with wings still creased. Chrysalis occurs many times in Woolf's writing but the "broken chrysalis" was an image that became a metaphor for those exploring the relationship between Woolf and grief. At his death, Leslie Stephen's net worth was PS15,715 6s. 6d. (probate 23 March 1904)

how did she react to her mother's death?
Essentially, her life had fallen apart.